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
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
