Re: Strange network issue (packet loss?)
I have tried to change switch port and use another ethernet interface (igb1) on the server, but problem are still here. So could I say it is 100% not hardware bug? -- Best regards, Antonio Kless, http://kless.spb.ru/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue (packet loss?)
On 19/08/2010 09:03, Antonio Kless wrote: # ifconfig igb0 media 100BaseTX # ifconfig igb0 igb0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 options=19bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4 ether 00:30:48:de:9a:4e inet 1.2.3.4 netmask 0xff00 broadcast 1.2.3.255 media: Ethernet 100baseTX (100baseTX half-duplex) status: active # scp -C u...@remote-server.net:/usr/bak/* /usr/bak Password: dump.2010.08.19_07-46-58.sql 100% 1291MB 3.1MB/s 07:00 That's works! But why half-duplex? Go next: Connections running at half-duplex is a classic sign of a mismatch between you and your provider's ideas about using autonegotiation on the connection. Either you both configure your network interfaces to autoneg, or neither of you do. No, it's not good enough to force your NIC to be fixed to the settings it would have had through autonegotiation: that will cause the *other* end of the connection to run at half-duplex. Looks like you should certainly be using autoneg -- the corrupted MAC is probably a symptom of some other problem. Possibly hardware troubles. Eliminate the cheap stuff first: check network cables for kinks or breakages, swap out for fresh ones, replug jacks into sockets. Try alternative NICs if you have them available. FreeBSD doesn't have a setting that lets you specify the max speed you want a NIC to run at while still allowing autoneg up to that speed -- which is something that a number of higher-end switches do provide -- so if you need bandwidth limitation, you should look into using dummynet or ALTQ. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate JID: matt...@infracaninophile.co.uk Kent, CT11 9PW signature.asc Description: OpenPGP digital signature
Strange network issue (packet loss?)
Server has 1000 Mbit network interface connected to 1000 Mbit Cisco switch. Let's say this things works OK. Actually, provider gives 10 Mbit channel. Here we go: # uname -a FreeBSD server.net 7.3-RELEASE FreeBSD 7.3-RELEASE #0: Mon Jul 26 02:33:48 MSD 2010 u...@server.net:/usr/obj/usr/src/sys/ALTERKERN amd64 # ifconfig igb0 igb0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 options=19bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4 ether 00:30:48:de:9a:4e inet 1.2.3.4 netmask 0xff00 broadcast 1.2.3.255 media: Ethernet autoselect (1000baseTX full-duplex) status: active # scp -C u...@remote-server.net:/usr/bak/* /usr/bak Password: dump.2010.08.19_07-46-58.sql 13% 172MB 3.0MB/s 06:08 ETA Disconnecting: Corrupted MAC on input. lost connection I repeat that about 20 times. Error goes in random moment and point (percentage) of downloading. # ifconfig igb0 media 100BaseTX # ifconfig igb0 igb0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 options=19bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4 ether 00:30:48:de:9a:4e inet 1.2.3.4 netmask 0xff00 broadcast 1.2.3.255 media: Ethernet 100baseTX (100baseTX half-duplex) status: active # scp -C u...@remote-server.net:/usr/bak/* /usr/bak Password: dump.2010.08.19_07-46-58.sql 100% 1291MB 3.1MB/s 07:00 That's works! But why half-duplex? Go next: # ifconfig igb0 media 100BaseTX mediaopt full-duplex # ifconfig igb0 igb0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 options=19bRXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4 ether 00:30:48:de:9a:4e inet 1.2.3.4 netmask 0xff00 broadcast 1.2.3.255 media: Ethernet 100baseTX full-duplex status: active # scp -C u...@remote-server.net:/usr/bak/* /usr/bak Password: dump.2010.08.19_07-46-58.sql 82% 1069MB 453.2KB/s 08:20 ETA ^C Killed by signal 2. OMG! Where has the speed get lost? What could be the reason, any ideas? -- Best regards, Antonio Kless, http://kless.spb.ru/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
FreeBSD 6.2 on esx3.5 network issue
Hi, I currently have installed FreeBSD 6.2 STABLE in esx, I do have problem with download file from the box using ftp/scp service. It seems to be slow having a Gigabit lan. it just seems to have going about 100Kbps-500Kpbs on download speed. But I do have high upload speed ranging from 4-5MBps. Is there any adjustments that needs to be done on the kernel? Thanks Josh ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 6.2 on esx3.5 network issue
On Wed, Apr 7, 2010 at 7:47 AM, josemel esleta cyberjosh...@yahoo.com wrote: Hi, I currently have installed FreeBSD 6.2 STABLE in esx, I do have problem with download file from the box using ftp/scp service. It seems to be slow having a Gigabit lan. it just seems to have going about 100Kbps-500Kpbs on download speed. But I do have high upload speed ranging from 4-5MBps. Is there any adjustments that needs to be done on the kernel? Well for a start FreeBSD 6.x is no longer supported by the community. I would suggest upgrading to at LEAST the current release of FreeBSD 7.x and preferably 8.x As there is a very low likelihood that there will be any stability or security updates for the 6.x series. -- Opportunity is most often missed by people because it is dressed in overalls and looks like work. Thomas Alva Edison Inventor of 1093 patents, including: The light bulb, phonogram and motion pictures. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 6.2 on esx3.5 network issue
On Apr 7, 2010, at 12:54 AM, Ross Cameron wrote: Well for a start FreeBSD 6.x is no longer supported by the community. 6.2 is no longer supported. 6.x in the form of 6.4 is supported through November 30, 2010. Regards, -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
on 28/01/2010 05:03 sam said the following: that s why I 've been so in doubt using freebsd AMD64 release. Why again? -- Andriy Gapon ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
Hello Sam, The problem happened today again. I am getting this message on traceroute === traceroute: findsaddr: write: No such process When running a ping to 8.8.8.8, it says following. === ping: sendto: No route to host Please see the result of netstat -rn command. myserver# netstat -rn Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire defaultXXX.XXX.XXX.241 UGS62 209247em0 127.0.0.1 link#3 UH 00lo0 XXX.XXX.XXX.240/29 link#1 U 00em0 XXX.XXX.XXX.242 link#1 UHS 00lo0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UH lo0 fe80::%lo0/64 link#3U lo0 fe80::1%lo0 link#3UHS lo0 ff01:3::/32 fe80::1%lo0 U lo0 ff02::%lo0/32 fe80::1%lo0 U lo0 = Note: I have replaced first three octets. I have checked netstat -m also. It is also not showing any problem. Could anyone please help me to sort out this issue. -- Thanks, Sherin On Thu, Jan 28, 2010 at 6:29 AM, sam s...@ip6.com.au wrote: Hi, Is this problem still happening? Cheers Sam On 24/01/2010 2:16 PM, Sherin George wrote: Hello, I am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 Now, I have updated to FreeBSD 8.0-RELEASE-p2 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful for any advice that can help me in troubleshooting this problem. -- Best Regards, Sherin ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
RE: Strange network issue in freebsd 8
I have been consumed by day job 200% of my time. I have some free time tonight and can work with you off-line. Is it possible for you to update to the latest stable-8 kernel and we start from there ? -- Qing -Original Message- From: owner-freebsd-...@freebsd.org on behalf of Sherin George Sent: Wed 1/27/2010 6:05 PM To: freebsd-...@freebsd.org; freebsd-hack...@freebsd.org; freebsd-questions@freebsd.org Subject: Re: Strange network issue in freebsd 8 Hello Sam, The problem happened today again. I am getting this message on traceroute === traceroute: findsaddr: write: No such process When running a ping to 8.8.8.8, it says following. === ping: sendto: No route to host Please see the result of netstat -rn command. myserver# netstat -rn Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire defaultXXX.XXX.XXX.241 UGS62 209247em0 127.0.0.1 link#3 UH 00lo0 XXX.XXX.XXX.240/29 link#1 U 00em0 XXX.XXX.XXX.242 link#1 UHS 00lo0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UH lo0 fe80::%lo0/64 link#3U lo0 fe80::1%lo0 link#3UHS lo0 ff01:3::/32 fe80::1%lo0 U lo0 ff02::%lo0/32 fe80::1%lo0 U lo0 = Note: I have replaced first three octets. I have checked netstat -m also. It is also not showing any problem. Could anyone please help me to sort out this issue. -- Thanks, Sherin On Thu, Jan 28, 2010 at 6:29 AM, sam s...@ip6.com.au wrote: Hi, Is this problem still happening? Cheers Sam On 24/01/2010 2:16 PM, Sherin George wrote: Hello, I am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 Now, I have updated to FreeBSD 8.0-RELEASE-p2 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful for any advice that can help me in troubleshooting this problem. -- Best Regards, Sherin ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
that s why I 've been so in doubt using freebsd AMD64 release. On 28/01/2010 1:05 PM, Sherin George wrote: Hello Sam, The problem happened today again. I am getting this message on traceroute === traceroute: findsaddr: write: No such process When running a ping to 8.8.8.8, it says following. === ping: sendto: No route to host Please see the result of netstat -rn command. myserver# netstat -rn Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire defaultXXX.XXX.XXX.241 UGS62 209247em0 127.0.0.1 link#3 UH 00lo0 XXX.XXX.XXX.240/29 link#1 U 00em0 XXX.XXX.XXX.242 link#1 UHS 00lo0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UH lo0 fe80::%lo0/64 link#3U lo0 fe80::1%lo0 link#3UHS lo0 ff01:3::/32 fe80::1%lo0 U lo0 ff02::%lo0/32 fe80::1%lo0 U lo0 = Note: I have replaced first three octets. I have checked netstat -m also. It is also not showing any problem. Could anyone please help me to sort out this issue. -- Thanks, Sherin On Thu, Jan 28, 2010 at 6:29 AM, sams...@ip6.com.au wrote: Hi, Is this problem still happening? Cheers Sam On 24/01/2010 2:16 PM, Sherin George wrote: Hello, I am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 Now, I have updated to FreeBSD 8.0-RELEASE-p2 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful for any advice that can help me in troubleshooting this problem. -- Best Regards, Sherin ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
Hello, Thanks Qing. I have already upgraded to latest patch as per per the advise of freebsd-hackers == myserver# uname -a FreeBSD myserver.server.net 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #0: Tue Jan 5 21:11:58 UTC 2010 r...@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 myserver# freebsd-update fetch Looking up update.FreeBSD.org mirrors... 3 mirrors found. Fetching metadata signature for 8.0-RELEASE from update4.FreeBSD.org... done. Fetching metadata index... done. Inspecting system... done. Preparing to download files... done. No updates needed to update system to 8.0-RELEASE-p2. == -- Regards, Sherin On Thu, Jan 28, 2010 at 8:22 AM, Li, Qing qing...@bluecoat.com wrote: I have been consumed by day job 200% of my time. I have some free time tonight and can work with you off-line. Is it possible for you to update to the latest stable-8 kernel and we start from there ? -- Qing -Original Message- From: owner-freebsd-...@freebsd.org on behalf of Sherin George Sent: Wed 1/27/2010 6:05 PM To: freebsd-...@freebsd.org; freebsd-hack...@freebsd.org; freebsd-questions@freebsd.org Subject: Re: Strange network issue in freebsd 8 Hello Sam, The problem happened today again. I am getting this message on traceroute === traceroute: findsaddr: write: No such process When running a ping to 8.8.8.8, it says following. === ping: sendto: No route to host Please see the result of netstat -rn command. myserver# netstat -rn Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire defaultXXX.XXX.XXX.241 UGS62 209247em0 127.0.0.1 link#3 UH 00lo0 XXX.XXX.XXX.240/29 link#1 U 00em0 XXX.XXX.XXX.242 link#1 UHS 00lo0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UH lo0 fe80::%lo0/64 link#3U lo0 fe80::1%lo0 link#3UHS lo0 ff01:3::/32 fe80::1%lo0 U lo0 ff02::%lo0/32 fe80::1%lo0 U lo0 = Note: I have replaced first three octets. I have checked netstat -m also. It is also not showing any problem. Could anyone please help me to sort out this issue. -- Thanks, Sherin On Thu, Jan 28, 2010 at 6:29 AM, sam s...@ip6.com.au wrote: Hi, Is this problem still happening? Cheers Sam On 24/01/2010 2:16 PM, Sherin George wrote: Hello, I am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 Now, I have updated to FreeBSD 8.0-RELEASE-p2 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful
Strange network issue in freebsd 8
Hello, i am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful for any advise that can help me in troubleshooting this problem. -- Best Regards, Sherin ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
Hello, Thanks for the reply. Please see the result of netstat -rn command. myserver# netstat -rn Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire defaultXXX.XXX.XXX.241 UGS62 209247em0 127.0.0.1 link#3 UH 00lo0 XXX.XXX.XXX.240/29 link#1 U 00em0 XXX.XXX.XXX.242 link#1 UHS 00lo0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UH lo0 fe80::%lo0/64 link#3U lo0 fe80::1%lo0 link#3UHS lo0 ff01:3::/32 fe80::1%lo0 U lo0 ff02::%lo0/32 fe80::1%lo0 U lo0 = Note: I have replaced first three octets. -- Regards, Sherin On Sat, Jan 23, 2010 at 11:57 PM, dacoder d...@dcoder.net wrote: you don't say what netstat -rn shows for a default route. +++ Sherin George [23/01/10 14:52 +0530]: Hello, i am facing some sort of strange network issue in a freebsd server occasionally. OS: FreeBSD 8.0-RELEASE - amd64 The servers loses network connection once in a few days. I logged into console and verified that network is up. I even restarted network service using following command. /etc/rc.d/netif restart Still, it didn't fix. I checked /var/log/messages, but I am not getting any clue. == Jan 19 12:10:20 myserver kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad0 finished. Jan 19 20:20:23 myserver nfsd[732]: select failed: Interrupted system call Jan 19 20:21:07 myserver nfsd[732]: select failed: Interrupted system call Jan 23 02:14:33 myserver login: ROOT LOGIN (root) ON ttyv0 Jan 23 02:19:51 myserver kernel: ifa_del_loopback_route: deletion failed Jan 23 02:19:57 myserver kernel: em0: link state changed to DOWN Jan 23 02:20:02 myserver kernel: em0: link state changed to UP Jan 23 02:29:58 myserver reboot: rebooted by root Jan 23 02:29:58 myserver syslogd: exiting on signal 15 Jan 23 02:31:31 myserver syslogd: kernel boot file is /boot/kernel/kernel Jan 23 02:31:31 myserver kernel: Copyright (c) 1992-2009 The FreeBSD Project. Jan 23 02:31:31 myserver kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jan 23 02:31:31 myserver kernel: The Regents of the University of California. All rights reserved. Jan 23 02:31:31 myserver kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jan 23 02:31:31 myserver kernel: FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC 2009 Jan 23 02:31:31 myserver kernel: r...@mason.cse.buffalo.edu: /usr/obj/usr/src/sys/GENERIC Jan 23 02:31:31 myserver kernel: Timecounter i8254 frequency 1193182 Hz quality 0 == Network, TCP stack all were up. It was pinging gateway even. But, traceroute was not going beyond gateway. I believe the issue is not related to anything outside server since a reboot always fixes the issue. I will be grateful for any advise that can help me in troubleshooting this problem. -- Best Regards, Sherin ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org -- regards, David Coder Network Engineer Emeritus, Verio/NTT Telluride, CO Washington, DC ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
Hello, Thanks for the reply. Please see the rc.conf file given below. === myserver# cat /etc/rc.conf defaultrouter=XXX.XXX.XXX.241 hostname=myserver.net ifconfig_em0=inet XXX.XXX.XXX.242 netmask 255.255.255.248 nfs_client_enable=YES nfs_server_enable=YES rpcbind_enable=YES sshd_enable=YES zfs mount -a inetd_enable=YES == Note: I have replaced first three octets. -- Regards, Sherin On Sun, Jan 24, 2010 at 4:39 AM, Michael L. Squires mi...@siralan.orgwrote: I am using an em0 card with 7.2-STABLE, no problems. My guess is that there is something wrong with the ifconfig commands in rc.conf for the em0 card. What do they look like? Mine are (DHCP via a Comcast cable modem) network_interfaces=fxp0 bge0 lo0 hostname=familysquires.net ifconfig_fxp0=DHCP ifconfig_em0=inet 10.1.5.1 netmask 255.255.255.0 gateway_enable=YES firewall_enable=YES firewall_type=simple natd_enable=YES natd_interface=fxp0 natd_flags= # other For a system inside the firewall with a fixed IP I have defaultrouter=10.1.5.1 ifconfig_em0=inet 10.1.5.160 netmask 255.255.255.0 inetd_enable=YES (System 1 connects to outside via a cable modem (fxp0); the em0 interface connects to a gigabit switch. System 2 is on the switch and uses System 1 as its router). Mike Squires ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Strange network issue in freebsd 8
On Sat, Jan 23, 2010 at 10:01 PM, Sherin George l...@sheringeorge.co.ccwrote: Hello, Thanks for the reply. Please see the rc.conf file given below. === myserver# cat /etc/rc.conf defaultrouter=XXX.XXX.XXX.241 hostname=myserver.net ifconfig_em0=inet XXX.XXX.XXX.242 netmask 255.255.255.248 nfs_client_enable=YES nfs_server_enable=YES rpcbind_enable=YES sshd_enable=YES zfs mount -a inetd_enable=YES == Note: I have replaced first three octets. -- Regards, Sherin On Sun, Jan 24, 2010 at 4:39 AM, Michael L. Squires mi...@siralan.org wrote: I am using an em0 card with 7.2-STABLE, no problems. My guess is that there is something wrong with the ifconfig commands in rc.conf for the em0 card. What do they look like? Mine are (DHCP via a Comcast cable modem) network_interfaces=fxp0 bge0 lo0 hostname=familysquires.net ifconfig_fxp0=DHCP ifconfig_em0=inet 10.1.5.1 netmask 255.255.255.0 gateway_enable=YES firewall_enable=YES firewall_type=simple natd_enable=YES natd_interface=fxp0 natd_flags= # other For a system inside the firewall with a fixed IP I have defaultrouter=10.1.5.1 ifconfig_em0=inet 10.1.5.160 netmask 255.255.255.0 inetd_enable=YES (System 1 connects to outside via a cable modem (fxp0); the em0 interface connects to a gigabit switch. System 2 is on the switch and uses System 1 as its router). Mike Squires ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org Hello there: i have one problem like that once with a motorolla cable-modem dont know why the machine just lost network connection. The problemas was the cable modem i can see the admin page of it but donde have internet. My ISP change it after 3 months of tickets. -- mmm, interesante. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
ipnat dmz/internal network issue
I have a gateway setup wing freebsd 7.1 gateway% uname -a FreeBSD gateway.latcha.com 7.1-RELEASE-p2 FreeBSD 7.1-RELEASE-p2 #0: Wed Feb 4 20:27:06 EST 2009 r...@gateway3.latcha.com:/usr/obj/usr/ src/sys/GATEWAY amd64 I have 1 external nic , and 2 internal, one for a DMZ and one for the rest of the network em0 is my external, em1 is my internal and em2 is my DMZ I am using ipf and ipnat to get access to the internet, but I am having an issue. I am able to get to the internet via nat on both em1 and em2. I am able to get port/IP redriection working from em0 - em2 I can access the address space from em1 - em2 But if I go to one of the redirected IPs from em1 - em0 - em2 it fails. here are my ipnat rules map em1 from 10.75.0.1/24 to 10.73.0.1/16 - 0/0 map em1 from 65.173.238.2/32 to 10.73.0.1/16 - 0/0 map em0 from 10.73.0.1/16 to any - 65.173.238.2/32 portmap tcp/udp auto map em0 from 10.75.0.1/24 to any - 65.173.238.2/32 portmap tcp/udp auto rdr em0 from any to 65.173.238.27/32 port = 80 - 10.75.0.29 port 80 tcp rdr em0 from any to 65.173.238.30/32 port = 80 - 10.75.0.30 port 80 tcp rdr em0 from any to 65.173.238.29/32 port = 80 - 10.75.0.26 port 80 tcp for now I have the firewall rules disabled, until I get this working, so I know it isn't a firewall issue. Any help would be appreciated. Steve K ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
RE: ipnat dmz/internal network issue
-Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Steve Krawcke Sent: Tuesday, April 14, 2009 12:08 PM To: mail.list freebsd-questions Subject: ipnat dmz/internal network issue I have a gateway setup wing freebsd 7.1 gateway% uname -a FreeBSD gateway.latcha.com 7.1-RELEASE-p2 FreeBSD 7.1-RELEASE-p2 #0: Wed Feb 4 20:27:06 EST 2009 r...@gateway3.latcha.com:/usr/obj/usr/ src/sys/GATEWAY amd64 I have 1 external nic , and 2 internal, one for a DMZ and one for the rest of the network em0 is my external, em1 is my internal and em2 is my DMZ I am using ipf and ipnat to get access to the internet, but I am having an issue. I am able to get to the internet via nat on both em1 and em2. I am able to get port/IP redriection working from em0 - em2 I can access the address space from em1 - em2 But if I go to one of the redirected IPs from em1 - em0 - em2 it fails. here are my ipnat rules map em1 from 10.75.0.1/24 to 10.73.0.1/16 - 0/0 map em1 from 65.173.238.2/32 to 10.73.0.1/16 - 0/0 map em0 from 10.73.0.1/16 to any - 65.173.238.2/32 portmap tcp/udp auto map em0 from 10.75.0.1/24 to any - 65.173.238.2/32 portmap tcp/udp auto rdr em0 from any to 65.173.238.27/32 port = 80 - 10.75.0.29 port 80 tcp rdr em0 from any to 65.173.238.30/32 port = 80 - 10.75.0.30 port 80 tcp rdr em0 from any to 65.173.238.29/32 port = 80 - 10.75.0.26 port 80 tcp for now I have the firewall rules disabled, until I get this working, so I know it isn't a firewall issue. Any help would be appreciated. Steve K You want to get to a public address that really exists on your DMZ from your private LAN? Why not connect to the DMZ addresses directly? What you're trying to do is probably possible, but tricky in some cases and not possible with some/many commercial firewalls. I'll have to read this a few more times and draw a pretty picture font size=1 div style='border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in' /div This email is intended to be reviewed by only the intended recipient and may contain information that is privileged and/or confidential. If you are not the intended recipient, you are hereby notified that any review, use, dissemination, disclosure or copying of this email and its attachments, if any, is strictly prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system. /font ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: one way network issue
On 10/19/05, Mohan Singh [EMAIL PROTECTED] wrote: On 10/18/05, Mohan Singh [EMAIL PROTECTED] wrote: To answer my own question, I didn't add a gateway for the subnet in question from this machine. Added it and everything is working now! Strange that it could go out into the subnet, but nothing could come in. *shrugs* That's not strange at all. The default gateway for your other subnet was obviously set, so you could get in. You had not set a default gateway for that one, so you could not get out. It just means that packets addressed to a subnet which doesn't match it's own, it doesn't know what to do with it. This won't affect packets coming in. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
one way network issue
I recently upgraded a FreeBSD box from 4.10 to 4.11 (nuke and install method). The settings in /etc are identical to the way it was (I went over it with vim -d to double check). Externally (router/firewall, etc.), nothing has changed. But on the new install of the machine, I cannot ping or access it from a different subnet. There is no firewall enable anywhere, and like I said, externally, nothing has changed in terms of routing or anything like that. What could be the matter? I can get on from a different subnet by ssh'ing into a machine on the same subnet of the upgraded box and then ssh'ing into the same box, but I'd like to figure out what is the problem. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: one way network issue
At 03:47 PM 10/18/2005, Mohan Singh wrote: I recently upgraded a FreeBSD box from 4.10 to 4.11 (nuke and install method). The settings in /etc are identical to the way it was (I went over it with vim -d to double check). Externally (router/firewall, etc.), nothing has changed. But on the new install of the machine, I cannot ping or access it from a different subnet. There is no firewall enable anywhere, and like I said, externally, nothing has changed in terms of routing or anything like that. What could be the matter? Sounds like it doesn't know what it's default route is. -Glenn I can get on from a different subnet by ssh'ing into a machine on the same subnet of the upgraded box and then ssh'ing into the same box, but I'd like to figure out what is the problem. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: one way network issue
On 10/18/05, Mohan Singh [EMAIL PROTECTED] wrote: But on the new install of the machine, I cannot ping or access it from a different subnet. To answer my own question, I didn't add a gateway for the subnet in question from this machine. Added it and everything is working now! Strange that it could go out into the subnet, but nothing could come in. *shrugs* ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
5.3-Stable network issue
I seem to have been having a rather strange networking issue in FreeBSD 5.3-Stable (it started happening immediately after 5.2.1 and has persisted since.. I keep ³hoping² that next time I cvsup it will be fixed, but no). I downgraded back to 5.2.1-p13 and it is perfectly fine once again. *** Some background information: My FreeBSD box is my home NAT router, server, firewall, etc. It does DHCP, MX for some of my domains, secondary DNS (I got primary elsewhere), apache for some webhosting, blah blah blah. Nothing really special. It is a Dual PIII-500, 512mb ram, and a couple ATA hdd¹s. Had 3 realtek network interfaces, but down to 2 now. *** The problem: Networking simply stops or locks up. Why, I don't know. I believe initially it happened for all 3 network cards... I thought tcp/ip processing or something in the kernel got locked. It happens every 30 minutes to an hour, and lasts about 60 seconds to 120 seconds. Unfortunately, 60 seconds to 120 seconds is long enough to kill messenger (my gf does not like), online gaming, etc etc. Lately, I had taken one of the realtek cards out (it was for a several km long wireless link) and moved the server to my gf's place (where I am now 100% of the time). So now that I have the server locally and rely on it for my internet connection, this has become a real PAIN. I've noticed that I can remain ssh'd into diablo, do whatever I want while this lock issue occurs. So the lan interface rl0 is fine. The internet interface, rl1 (which goes to the cable modem) locks up. (btw, its not the cable modem as I am using my gf's now, and it did this at my place on my cable modem too, which is a different brand. Nortel at my place, motorola at my gfs). *** Attempts: I've attempted switching out network cards, and places 3 other realtek cards in. Different brands, all with different revisions (D instead of B, etc, etc). No matter what I try, nothing fixes it. The machine seems perfectly repsonsive, and I am still ssh'd in and can do whatever I want on it... But the network card going to the cable modem has stopped responding?! This never happened during 5.0-Current all throughout 5.2.1-STABLE, but anywhere beyond 5.2.1 it craps itself. *** Dmesg output: Copyright (c) 1992-2004 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 5.2.1-RELEASE-p13 #2: Thu Feb 10 18:39:33 CST 2005 [EMAIL PROTECTED]:/junk/obj/junk/src/sys/DIABLO Preloaded elf kernel /boot/kernel/kernel at 0xc076c000. MPTable: OEM0 PROD Timecounter i8254 frequency 1193182 Hz quality 0 CPU: Pentium III/Pentium III Xeon/Celeron (504.72-MHz 686-class CPU) Origin = GenuineIntel Id = 0x673 Stepping = 3 Features=0x387fbffFPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA, CMOV,PAT,PSE36,PN,MMX,FXSR,SSE real memory = 536870912 (512 MB) avail memory = 516034560 (492 MB) FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 ioapic0: Assuming intbase of 0 ioapic0 Version 1.1 irqs 0-23 on motherboard Pentium Pro MTRR support enabled npx0: [FAST] npx0: math processor on motherboard npx0: INT 16 interface pcibios: BIOS version 2.10 Using $PIR table, 7 entries at 0xc00fdcf0 pcib0: Intel 82443BX (440 BX) host to PCI bridge at pcibus 0 on motherboard pci0: PCI bus on pcib0 pci_cfgintr: 0:10 INTA BIOS irq 10 pci_cfgintr: 0:12 INTA BIOS irq 11 agp0: Intel 82443BX (440 BX) host to PCI bridge mem 0xd000-0xd3ff at device 0.0 on pci0 pcib1: PCI-PCI bridge at device 1.0 on pci0 pci1: PCI bus on pcib1 isab0: PCI-ISA bridge at device 7.0 on pci0 isa0: ISA bus on isab0 atapci0: Intel PIIX4 UDMA33 controller port 0xf000-0xf00f at device 7.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata0: [MPSAFE] ata1: at 0x170 irq 15 on atapci0 ata1: [MPSAFE] uhci0: Intel 82371AB/EB (PIIX4) USB controller port 0xe000-0xe01f at device 7.2 on pci0 pci_cfgintr: 0:7 INTD routed to irq 11 usb0: Intel 82371AB/EB (PIIX4) USB controller on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered piix0: PIIX Timecounter port 0x5000-0x500f at device 7.3 on pci0 Timecounter PIIX frequency 3579545 Hz quality 0 pci0: display, VGA at device 8.0 (no driver attached) rl0: RealTek 8139 10/100BaseTX port 0xe400-0xe4ff mem 0xd700-0xd7ff irq 10 at device 10.0 on pci0 rl0: Ethernet address: 00:00:21:f2:a5:47 miibus0: MII bus on rl0 rlphy0: RealTek internal media interface on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto rl1: RealTek 8139 10/100BaseTX port 0xe800-0xe8ff mem 0xd7001000-0xd70010ff irq 11 at device 12.0 on pci0 rl1: Ethernet address: 00:40:f4:90:1c:4b miibus1: MII bus on rl1 rlphy1: RealTek internal media interface on miibus1 rlphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto orm0: Option ROMs at iomem 0xc8000-0xcbfff,0xc-0xc7fff
network issue
My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). There is a third machine (192.168.1.254, ip address from isp) that acts as a gateway router. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? is it because my default route is set to be external? Thanks, Brian To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
RE: network issue
What is your default gateway and subnet mask for your lan? Cheers, Eric Six -Original Message- From: Brian Henning [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 13, 2003 11:37 AM To: freebsd Subject: network issue My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). There is a third machine (192.168.1.254, ip address from isp) that acts as a gateway router. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? is it because my default route is set to be external? Thanks, Brian To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
Brian Henning wrote: My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). There is a third machine (192.168.1.254, ip address from isp) that acts as a gateway router. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? Can you give more details about the topology? Does the gateway have 2 NICs? I assume there's a hub on the inside? Please post the output from ifconfig on the gateway machine. is it because my default route is set to be external? No, that doesn't normally cause problems to a local network. When our Internet goes down it doesn't affect internal traffic in the slightest. This is a rather strange problem. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
On Thu, Feb 13, 2003 at 11:36:47AM -0600, Brian Henning wrote: My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). There is a third machine (192.168.1.254, ip address from isp) that acts as a gateway router. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? is it because my default route is set to be external? Thanks, Brian Are your two local machines simply connected by a hub/switch, or is there some other setup? What does your routing table look like - output of `netstat -rn`. Is there an entry that looks something like: 192.168.1link#1 UC 30 eth0 nathan -- GPG Public Key ID: 0x4250A04C gpg --keyserver pgp.mit.edu --recv-keys 4250A04C http://63.105.21.156/gpg_nkinkade_4250A04C.asc msg19271/pgp0.pgp Description: PGP signature
Re: network issue
My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). There is a third machine (192.168.1.254, ip address from isp) that acts as a gateway router. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? is it because my default route is set to be external? yup might consider setting one (say bsd1) up as a firewall/natd machine and then routing through that. Adds expandability (and security of course :) ). -- Scott A. Moberly [EMAIL PROTECTED] Turner's Definition A fine is a tax for doing wrong. A tax is a fine for doing well. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
Brian Henning wrote: Let me try again, here is my situation and question with a little more detail. My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). Both of these machines use the subnet mask 255.255.255.0 and gateway 192.168.1.254. There is a third machine GATEWAY (192.168.1.254, ip address from isp) has two nics and acts as the router. All of these machine are connected to a switch locally. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? Not that I can think of. There's no reason I can imagine that your local connectivity should suffer from Internet problems. Especially if you're connecting via IP address (which rules out DNS problems). Could you provide 'netstat -rn' and 'ifconfig' output from GATEWAY, please. I don't see anything in the other information you provided that would indicate any sort of misconfig on BSD2. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
This is my router info. rawhide ip addr show 1: lo: LOOPBACK,UP mtu 3924 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope global lo 2: eth0: BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:50:ba:b8:8c:2e brd ff:ff:ff:ff:ff:ff inet 66.41.139.87/21 brd 255.255.255.255 scope global eth0 3: eth1: BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:50:ba:ae:be:fa brd ff:ff:ff:ff:ff:ff inet 192.168.1.254/24 brd 192.168.1.255 scope global eth1 rawhide ip route show 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.254 66.41.136.0/21 dev eth0 proto kernel scope link src 66.41.139.87 default via 66.41.136.1 dev eth0 - Original Message - From: Bill Moran [EMAIL PROTECTED] To: Brian Henning [EMAIL PROTECTED] Cc: freebsd [EMAIL PROTECTED] Sent: Thursday, February 13, 2003 1:49 PM Subject: Re: network issue revisited Brian Henning wrote: Let me try again, here is my situation and question with a little more detail. My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). Both of these machines use the subnet mask 255.255.255.0 and gateway 192.168.1.254. There is a third machine GATEWAY (192.168.1.254, ip address from isp) has two nics and acts as the router. All of these machine are connected to a switch locally. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? Not that I can think of. There's no reason I can imagine that your local connectivity should suffer from Internet problems. Especially if you're connecting via IP address (which rules out DNS problems). Could you provide 'netstat -rn' and 'ifconfig' output from GATEWAY, please. I don't see anything in the other information you provided that would indicate any sort of misconfig on BSD2. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
I'm guessing more than likely your DNS server is external to your internal LAN and you don't have an internal DNS to manage RFC1918 IPs. If this is the case, this is why pings will *seem* to fail. They are trying to look up your internal addresses (which will fail with an internet connection up fairly quickly) but hang because there is no connection via your ISP to a DNS server to respond no, there is no PTR for that A. Get yourself an internal DNS and you should be ok Don To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
(which rules out DNS problems). Not unless he does ping -n. If not, the A will still attempt to be resolved. Don To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
Brian Henning wrote: This is my router info. rawhide ip addr show 1: lo: LOOPBACK,UP mtu 3924 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope global lo 2: eth0: BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:50:ba:b8:8c:2e brd ff:ff:ff:ff:ff:ff inet 66.41.139.87/21 brd 255.255.255.255 scope global eth0 3: eth1: BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:50:ba:ae:be:fa brd ff:ff:ff:ff:ff:ff inet 192.168.1.254/24 brd 192.168.1.255 scope global eth1 Linux box, eh? rawhide ip route show 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.254 66.41.136.0/21 dev eth0 proto kernel scope link src 66.41.139.87 default via 66.41.136.1 dev eth0 Brian, I don't see anything here that looks wrong at all. I assume you have some sort of NAT software handling traffic between the two interfaces, but I wouldn't normally expect that to cause problems if the external interface is down. I honestly can't imaging what could be causing the problems you describe. Hopefully, someone else will be able to look at this and come up with something, but I'm stumped. If you turn rawhide off (shut it down) can BSD1 ping BSD2? Is the switch managed? If so, make sure it's not blocking any sort of broadcast traffic or the like. Some of those (especially older) managed switches can cause the strangest problems if they're configured wrong. - Original Message - From: Bill Moran [EMAIL PROTECTED] To: Brian Henning [EMAIL PROTECTED] Cc: freebsd [EMAIL PROTECTED] Sent: Thursday, February 13, 2003 1:49 PM Subject: Re: network issue revisited Brian Henning wrote: Let me try again, here is my situation and question with a little more detail. My local network (192.168.1.0) consists of two machine BSD1 (192.168.1.40) and BSD2 (192.168.1.42). Both of these machines use the subnet mask 255.255.255.0 and gateway 192.168.1.254. There is a third machine GATEWAY (192.168.1.254, ip address from isp) has two nics and acts as the router. All of these machine are connected to a switch locally. When my internet connection goes down for whatever reason I loose connections in my local network. For example, i can't ping 192.168.1.40 from 192.168.1.42. is there any explaination for this? Not that I can think of. There's no reason I can imagine that your local connectivity should suffer from Internet problems. Especially if you're connecting via IP address (which rules out DNS problems). Could you provide 'netstat -rn' and 'ifconfig' output from GATEWAY, please. I don't see anything in the other information you provided that would indicate any sort of misconfig on BSD2. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
Ok, i am willing to try out the internal dns server but, i don't know which machine to run it on. Any suggestions? - Original Message - From: northern snowfall [EMAIL PROTECTED] To: Brian Henning [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Thursday, February 13, 2003 2:11 PM Subject: Re: network issue I'm guessing more than likely your DNS server is external to your internal LAN and you don't have an internal DNS to manage RFC1918 IPs. If this is the case, this is why pings will *seem* to fail. They are trying to look up your internal addresses (which will fail with an internet connection up fairly quickly) but hang because there is no connection via your ISP to a DNS server to respond no, there is no PTR for that A. Get yourself an internal DNS and you should be ok Don To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
Brian Henning wrote: Ok, i am willing to try out the internal dns server but, i don't know which machine to run it on. Any suggestions? Whichever box doesn't act as your most-used-workstation, or, the router if its capable of running a server. Don To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
northern snowfall wrote: (which rules out DNS problems). Not unless he does ping -n. If not, the A will still attempt to be resolved. Don Good point, I stand corrected. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue revisited
On Thu, Feb 13, 2003 at 03:33:57PM -0500, Bill Moran wrote: northern snowfall wrote: (which rules out DNS problems). Not unless he does ping -n. If not, the A will still attempt to be resolved. Don Good point, I stand corrected. -- Bill Moran I must be missing something. Don is right, the manpage clearly states that the -n option sould supress symbolic name lookups, but no matter how hard I try I cannot elicit a DNS query out of ping. I run named on my local network. First, I pinged an IP address that I knew my system would not have cached anywhere - no DNS lookup. Then I disabled named and tried again with a few new IP addresses - still no DNS queries. Then I even went so far as to rename my hosts file. At this point I couldn't even ping 'localhost' by name. Each time, the ping worked fine and never once issued a DNS query - I was watching with ethereal. Is the manpage incorrect? Further, the OP's gateway machine should have no effect whatsoever on his ability to ping another machine directly connected to his switch. This problem is mighty strange. Nathan -- GPG Public Key ID: 0x4250A04C gpg --keyserver pgp.mit.edu --recv-keys 4250A04C http://63.105.21.156/gpg_nkinkade_4250A04C.asc msg19341/pgp0.pgp Description: PGP signature
network issue
I just installed fbsd4.7 on my laptop. I used a lot of the default settings like default security and the ssh. I had to add my PCMCIA NIC to the pccard.conf so that my machine could be on the network. After doing so i configured it and I was able to access the web and the other machines from it. I then tried to ssh into the laptop from another machine on my network and i get nothing. When i try to ping the same laptop from another machine on my local network i get nothing. [/usr/src/sys/i386/conf] ping 192.168.1.44 PING 192.168.1.44 (192.168.1.44): 56 data bytes 100 % packets lost. i tried this from several other machines and get the same results. Anyone have any advice? Something to look for? thanks for any help, brian To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: network issue
Hi, I'm kinda new to this list but I had the same problem when I've upgraded from 4.5-release to 4.7-stable. about the ping, I'm not sure if you have any f/w on ur network or you've installed ipf by default try ipfstat or ipmon. concerning ssh, make sure your hostname is configured correctly if ur using a DNS, with the correct reverse, gethostbyname() will hang ssh with no errors (from what I've seen) if your IP has different dns entries or wrong reverse hostnames.. hope this helps u get somehwere, Ed. Quoting Brian Henning ([EMAIL PROTECTED]): I just installed fbsd4.7 on my laptop. I used a lot of the default settings like default security and the ssh. I had to add my PCMCIA NIC to the pccard.conf so that my machine could be on the network. After doing so i configured it and I was able to access the web and the other machines from it. I then tried to ssh into the laptop from another machine on my network and i get nothing. When i try to ping the same laptop from another machine on my local network i get nothing. [/usr/src/sys/i386/conf] ping 192.168.1.44 PING 192.168.1.44 (192.168.1.44): 56 data bytes 100 % packets lost. i tried this from several other machines and get the same results. Anyone have any advice? Something to look for? thanks for any help, brian To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message -- Edmond Baroud Mobile: 1.514.999.8777 UNIX Systems Admin mailto:[EMAIL PROTECTED] Microcell Telecom http://www.microcell.ca/ I.Fido Serviceshttp://www.fido.ca/ Fingerprint 140F 5FD5 3FDD 45D9 226D 9602 8C3D EAFB 4E19 BEF9 UNIX is very user friendly, it's just picky about who its friends are. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
