Linux-Networking Digest #11, Volume #11 Sun, 2 May 99 05:13:32 EDT
Contents:
Re: newbie: can't route from LAN to ISP and internet (Lew Pitcher)
Re: Problem with FTP and Masq (Lew Pitcher)
Help: Problem with Intel Ether Express Pro 10+ ISA ("Danny Falkov")
Virtual Server vs. Virtual Host ("Richard Brodsky")
FAQ for running Netscape (Jack Cardozo)
Re: IP Masquerading (George Durbridge)
Re: ppp problems partially resolved with zoom 2919L modem (Tim Moore)
Re: Linux on Compaq ("Ronald L. Chichester")
Re: Linux on Compaq ("Ronald L. Chichester")
Re: Question: Download Priority on one PPP line ?? (francois)
Re: Bridge or Routing ? (LinuxBoy)
Re: IP Masquerading (John Hornblow)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Lew Pitcher)
Subject: Re: newbie: can't route from LAN to ISP and internet
Date: Sun, 02 May 1999 06:05:20 GMT
Reply-To: [EMAIL PROTECTED]
make sure your slzlr3 kernel is compiled with IP_FORWARDING enabled, then
echo 1 >/proc/sys/net/ipv4/ip_forward on that machine to enable ip
forwarding.
On Sat, 01 May 1999 20:54:01 -0500, "Randall L. Selzler"
<[EMAIL PROTECTED]> wrote:
>I have some experience with Linux, but I'm a newbie at networking.
>NET-3-HOWTO helped alot, but now I'm stuck. HELP !
>
>Configuration:
>
> slzlr4: (Laptop, RH5.2 + 2.2.6 kernel)
> eth0 (192.168.1.4)
> |
> | 10/100BaseT
> |
> eth0 (192.168.1.3)
> slzlr3: (Desktop, RH5.2 + 2.2.6 kernel)
> ppp0 (38.193.80.246)
> |
> | ISDN
> |
> xxx (206.41.131.5)
> ISP Dialup Server
> 206.41.131.3 DNS Primary
> 206.41.128.10 DNS Secondary
> 206.41.131.1 Gateway
>
>PROBLEM: "slzlr4" can not see beyond my side of the ppp connection.
>
>"slzlr3" and "slzlr4" can ping each other, do NFS mounts, etc.
>
>"slzlr3" can ping the other side of the ppp (206.41.131.5),
>ISP name servers (206.41.131.3) and internet in general.
>
>"slzlr4" can ping ppp0 (38.193.80.246) but not (206.41.131.5).
>
>SETUP ON slzlr3 (Desktop that can see internet)
>
> slzlr3# ifconfig eth0 192.168.1.3
> slzlr3# pppd /dev/ttyS0 115200 connect /etc/ppp/ionetisdn-connect \
> defaultroute noipdefault debug crtscts modem lock kdebug 1
>
> slzlr3# ifconfig
> eth0 Link encap:Ethernet HWaddr 00:50:04:62:EC:AB
> inet addr:192.168.1.3 Bcast:192.168.1.255
>Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:455 errors:0 dropped:0 overruns:0 frame:0
> TX packets:280 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:14 Base address:0xfc00
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:3924 Metric:1
> RX packets:18 errors:0 dropped:0 overruns:0 frame:0
> TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:38.193.80.246 P-t-P:206.41.131.5
>Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
> RX packets:42 errors:1 dropped:0 overruns:0 frame:1
> TX packets:64 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:10
>
> slzlr3# netstat -rn
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window
>irtt Iface
> 206.41.131.5 0.0.0.0 255.255.255.255 UH 0
>0 0 ppp0
> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0
>0 0 lo
> 192.168.1.0 0.0.0.0 255.255.255.0 U 0
>0 0 eth0
> 0.0.0.0 206.41.131.5 0.0.0.0 UG 0
>0 0 ppp0
>
> slzlr3# ping 206.41.131.5
> PING 206.41.131.5 (206.41.131.5): 56 data bytes
> 64 bytes from 206.41.131.5: icmp_seq=0 ttl=255 time=147.2 ms
>
>SETUP ON slzlr4 (Laptop that can't see internet)
> slzlr4# ifconfig eth0 192.168.1.4
> slzlr4# route add default gw 192.168.1.3 eth0
>
> slzlr4# ifconfig
> eth0 Link encap:Ethernet HWaddr 00:10:4B:F8:47:48
> inet addr:192.168.1.4 Bcast:192.168.1.255
>Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:8446 errors:0 dropped:0 overruns:0 frame:0
> TX packets:20894 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:3 Base address:0x200
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:3924 Metric:1
> RX packets:32 errors:0 dropped:0 overruns:0 frame:0
> TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
>
> slzlr4# netstat -rn
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window
>irtt Iface
> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0
>0 0 lo
> 192.168.1.0 0.0.0.0 255.255.255.0 U 0
>0 0 eth0
> 0.0.0.0 192.168.1.3 0.0.0.0 UG 0
>0 0 eth0
>
> slzlr4# ping 38.193.80.246
> PING 38.193.80.246 (38.193.80.246): 56 data bytes
> 64 bytes from 38.193.80.246: icmp_seq=0 ttl=255 time=0.3 ms
>
> slzlr4# ping 206.41.131.5
> PING 206.41.131.5 (206.41.131.5): 56 data bytes
> ### no response, 100% packet loss
>
>I suppose the answer lies in the route command, but nothing that I've
>tried
>seems to help...
> slzlr3# route add default ppp0
> slzlr3# route add default gw 206.41.131.5
>
>Any suggestions are appreciated, Thanks in advance...
>Randy
>
>
Lew Pitcher
JOAT-in-training
------------------------------
From: [EMAIL PROTECTED] (Lew Pitcher)
Subject: Re: Problem with FTP and Masq
Date: Sun, 02 May 1999 06:08:38 GMT
Reply-To: [EMAIL PROTECTED]
On Sun, 02 May 1999 03:43:37 GMT, [EMAIL PROTECTED] (William
Bartholomew) wrote:
>I have ip masq set up and working... all programs work across it, ICQ,
>IRC, Telnet, WWW but when i use FTP I can connect to the server login
>but it will not transfer any data not even directory listings, I can
>only assume my Linux box is blocking the data port does any one know
>how to fix this? I am using Red Hat 5.2 with 2.2.6 kernel...
Transfers to the FTP client are done through ports outside of the port
used by the FTP client to talk to the FTP server. Your firewall/NAT box
doesnt know that TCP port xxxxx should be forwarded to your client machine
at port xxxxx, so what you need is the kernel modules that permit
controlled passage through the firewall. Look for, compile, and install the
ip_masq_ftp module on your firewall machine.
Lew Pitcher
JOAT-in-training
------------------------------
From: "Danny Falkov" <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux,comp.os.linux.hardware
Subject: Help: Problem with Intel Ether Express Pro 10+ ISA
Date: Sat, 1 May 1999 22:20:40 -0400
Hi all.
I don't know much about Linux, but I spoke to someone that
does and they really don't know what's going on either.
I have a pretty standard system, where Linux recognizes almost
all components just fine. With the exception of my Ethernet card.
It's an Intel EtherExpress 10+ ISA.
When install RH 5.2 BASED Linux distrib (BeroLinux),
it asks if I would like to add a NIC (after failing to
detect a NIC on the PCI bus, since I don't have a PCI NIC). So I do, and it
has 3 Intel cards listed- EE, EEpro, and EEpro 100.
It does NOT see either an EE or an EEPro100.
But when I select EEpro, it HANGS. Yes, It's weird.
I can still get the kernel messages, and the last one is
the Insmod of the *.o file for the adapter.
Is there something I am doing wrong? This is a 2.2.3 Kernel,
with ALL the latest updates built in.
I really need help here, since without Network access, I am forced
to go back to NT.
Thank you very much for your time,
--
Danny Falkov
Real-time Collaboration Consultant
Author of NMSE &
Webmaster @ http://www.netmeet.net
------------------------------
From: "Richard Brodsky" <[EMAIL PROTECTED]>
Crossposted-To: comp.infosystems.www.servers.misc,comp.infosystems.www.servers.unix
Subject: Virtual Server vs. Virtual Host
Date: Sat, 01 May 1999 23:22:58 -0700
If I set up a "Virtual Server" under Apache, what does that mean exactly. Is
it essentially just a Virtual Host (name based host) or does it have its own
set of config files and sendmail, directory structure etc. like an actual
server? Also, can someone point me towards some documentation on
"multiplexing" a Linux server into actual "Virtual Servers" like is done at
http://www.vservers.com and http://www.iserver.com. Please respond via
email.
Thanks
*******************
Richard Brodsky
[EMAIL PROTECTED]
------------------------------
From: Jack Cardozo <[EMAIL PROTECTED]>
Subject: FAQ for running Netscape
Date: Sat, 01 May 1999 23:20:22 -0700
Hi all,
Is there an FAQ for running Netscape?
I got a ppp connection using Slackware and could ping the ISP, but couldnt
get Netscape running.
Message was something like: the server does not have a DNS entry . check
server name.....
Any help is appreciated.
Jack Cardozo
------------------------------
From: [EMAIL PROTECTED] (George Durbridge)
Crossposted-To: aus.computers.linux
Subject: Re: IP Masquerading
Date: 2 May 1999 06:55:29 GMT
Have you run depmod -a ?
Have you set up any options for your modules ?
If you compiled in kerneld support, have you started kerneld in one of
your boot files ?
Michael Junek ([EMAIL PROTECTED]) wrote:
: People,
: I am attempting to set up IP masquerading on Red Hat 5.0 (Kernel
: 2.0.32). I install the source, use make menuconfig and enable IP masq. i
: then make dep, make clen, make zlilo, make modules, & make
: modules_install. when i boot i get a whole heap of errors about modules
: and my network card doesnt work, what have i done wrong?
: Mikey...
--
/* George Durbridge Melbourne, Victoria, Australia */
/* tel (03) 9280 3390 fax (03) 9280 3288 */
------------------------------
Date: Sat, 01 May 1999 23:42:56 -0700
From: Tim Moore <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware
Subject: Re: ppp problems partially resolved with zoom 2919L modem
For the rest of you who are new to linux and/or modems under linux, this content is
completely bogus. Modems do not know or care what content you download. It's all
just a byte stream.
Neither does modem firmware know about office97 upgrade paks.
"Fred T. Hamster" wrote:
>
> i posted earlier about having a problem downloading the sr1off97.exe file
> (microsoft office 97 service release 1) under redhat linux 5.2 using ppp and a
> zoom 2919L modem. that problem has been partially (mostly) resolved.
> here are some fragments of wisdom or information encountered while i was
> debugging this situation.
>
> + i'm using a hideous init string for this modem (zoom 2919L) of:
> AT&FE0&C1&D2&K3V1S0=0\\V1S7=60S30=0L0\\N3%C1B0B15N1X4
> it's ugly, but it seems to work. this is pretty close to what win95 sends the
> modem, according to one respondent. the double back slashes are for the benefit
> of the script file; use single back slashes when testing with minicom.
>
> + zoom 2919L may have flaky behavior with linux in general (because they don't
> test under a freely available operating system). if you have a zoom modem and
> use linux, please send the folks at www.zoomtel.com a message stating that you'd
> really appreciate if they wouldn't claim their modems work under linux when they
> don't actually test them under linux. or stating that you'd really like it if
> they'd set up a linux box and test their modems on it...
>
> + there may be some strange MTU factors due to IP masquerade. this is
> supposedly because the transmission MTU has to be the same for all the routes,
> and the ethernet MTU is 1500. i am now using the default of 1500 and things are
> doing well; with smaller MTU's, i start being unable to see certain sites (like
> www.tvguide.com's tv listings).
>
> + the latest modem firmware upgrade for the 2919L allowed me to download the
> sr1off97.exe file finally. this file is available at:
>
>http://premium.officeupdate.microsoft.com/officeupdate/DistribDownload/sr1off97ddl.htm
>
> this file was the initial reason for my posting; i needed to download it and
> couldn't get the download to even start. bigger files worked, smaller files
> worked, but this file didn't.
> after it started working, two of the times i tried, the download was really
> slow all through the first 3-4 K of the file. after that part, the speed picked
> up to normal download rates. but another time, the file was speedily downloaded
> even in that first portion. this might be due to varying quality connections to
> my ISP.
>
> so, it really seems like some weird behavior inside my modem has been fixed,
> but what still puzzles me is why win95 was able to download the file with no
> problem, even with the older firmware. perhaps there are enough differences in
> how the modem is used under linux and 95 for those differences to matter.
> thanks to the people who contributed suggestions about this.
> -chris
>
> --
> ______ chosen by the Nechung Oracle Program (http://www.twain.com/)... ______
>
> The function of genius is not to give new answers,
> but to pose new questions--which time and mediocrity can solve.
> -- Hugh Trevor-Roper, "Men and Events"
>
> _____________ not necessarily my opinions, not necessarily not. _____________
--
Direct replies to username 'timothymoore'
"Everything is permitted. Nothing is forbidden."
WS Burroughs.
------------------------------
From: "Ronald L. Chichester" <[EMAIL PROTECTED]>
Subject: Re: Linux on Compaq
Date: Sun, 02 May 1999 00:43:26 -0500
Brueckner wrote:
>
> A friend of mine uses a professional workstation, he�s got a "bios cd" which loads
>some
> sort of minimized windows, where you can change all sorts of parameters for
> your hardware. Maybe you need to contact compaq to get such a cd.
There is such a CD. It is called Smart Start (and there is a second CD for
configuration
management help files). Incidentally, that CD is supposed to be loaded onto the boot
hard
drive (where 39 MB is partitioned for that purpose). Unfortunately, the people who
sold
us our Compaqs didn't load Smart Start. Consequently, in order to fix the IRQ problem,
I
had to repartition my boot hard disk, load Smart Start, and reload WinNT. That was a
pain. However, once done, I was able to solve the IRQ problem in a matter of minutes.
I'm going to send a letter to Compaq complaining about thier sloppy third party vendor.
Thank you gentlemen!
Ron
------------------------------
From: "Ronald L. Chichester" <[EMAIL PROTECTED]>
Subject: Re: Linux on Compaq
Date: Sun, 02 May 1999 00:42:38 -0500
Brueckner wrote:
>
> A friend of mine uses a professional workstation, he�s got a "bios cd" which loads
>some
> sort of minimized windows, where you can change all sorts of parameters for
> your hardware. Maybe you need to contact compaq to get such a cd.
>
There is such a CD. It is called Smart Start (and there is a second CD for
configuration
management help files). Incidentally, that CD is supposed to be loaded onto the boot
hard
drive (where 39 MB is partitioned for that purpose). Unfortunately, the people who
sold
us our Compaqs didn't load Smart Start. Consequently, in order to fix the IRQ
problem, I
had to repartition my boot hard disk, load Smart Start, and reload WinNT. That was a
pain. However, once done, I was able to solve the IRQ problem in a matter of minutes.
I'm going to send a letter to Compaq complaining about thier sloppy third party vendor.
Thank you gentlemen!
Ron
------------------------------
From: [EMAIL PROTECTED] (francois)
Subject: Re: Question: Download Priority on one PPP line ??
Date: Tue, 27 Apr 1999 15:31:21 GMT
On 25 Apr 1999 11:05:14 +0100, James Youngman
<[EMAIL PROTECTED]> wrote:
Many thanks for the suggestion, I reduce my pppd mru to 576,
work much better :))
Regards
Fran�ois
>[EMAIL PROTECTED] (francois) writes:
>
>> Hello world !
>>
>> Problem:
>> When I'm downloading http or ftp files and when I want to surf during
>> this time, it's very slow
>> e.g. ppp daemon did not dynamically adjust priority
>
>It's not a priority thing, it's just that the incoming packets are
>large so you often have to wait over a second for the next packet.
>Reduce your MRU value.
------------------------------
From: LinuxBoy <[EMAIL PROTECTED]>
Subject: Re: Bridge or Routing ?
Date: Sun, 02 May 1999 00:57:37 -0700
Gunther,
I read you message and think that I can help. I understand that you
have two network cards in your linuxbox, one going to subnet 1 and the
other going to subnet 2. You want to be able to have subnet 1 talk to
subnet 2 and vise versa. Here is what you are going to have to do. In the
network settings, you are going to have to enable packet forwarding between
the two network cards. OH, make sure that linux see both of your net cards
on bootup. After you enable packet forwarding you can use a program that
comes with most major distributions of linux called "ipfwadm". After
installing the program you have to set some network rules like incoming
traffic, outgoing traffic, and forwarding traffic. If you go to
metalab.unc.edu/pub/Linux and read the firewall howtos etc. Also go to
www.linuxapps.com and select networking and security. I know this sounds
like a lot and I don't have many details but each setup is different. Let
me know if you still need help and keep in touch. I just setup a
configuration like yours, but it took time. Don't loose interest.
LinuxBoy
[EMAIL PROTECTED]
Gunther Grelczak wrote:
> Hello,
>
> I have 2 small Networks ( all Winboxes ) and they are connected
> with a Linuxbox ( 2 Ethernet-cards ) like this :
>
> Subnet 1( 2 PC's Win ) <==> ( NIC1 ) LINUX (NIC2) <==>Subnet 2 ( 5 PC's
> Win)
>
> TCP/IP Communication is OK. The Apache on the Linux is reachable
> from both sides, but I can`t see the Windows-shares on Subnet1 from
> Subnet2
> or on Subnet2 from Subnet1.
>
> I know that NetBIOS and SMB are not routable protocols, but I heard
> about a
> bridge configuration which can solve my problem. Who knows anything
> about this ?
>
> Thanks.
>
> Gunther Grelczak
> -----------------------------
> [EMAIL PROTECTED]
> -----------------------------
------------------------------
From: [EMAIL PROTECTED] (John Hornblow)
Crossposted-To: aus.computers.linux
Subject: Re: IP Masquerading
Date: Sun, 02 May 1999 08:36:19 GMT
Reply-To: [EMAIL PROTECTED]
On Sun, 02 May 1999 15:26:54 +1000, Michael Junek
<[EMAIL PROTECTED]> wrote:
>People,
>
>I am attempting to set up IP masquerading on Red Hat 5.0 (Kernel
>2.0.32). I install the source, use make menuconfig and enable IP masq. i
>then make dep, make clen, make zlilo, make modules, & make
>modules_install. when i boot i get a whole heap of errors about modules
>and my network card doesnt work, what have i done wrong?
>
same question but in my case, not errors
but pinging outside the lan from the other machine doesnt kick diald,
it just give no response....
=====================================================
John Hornblow
homepage http://homepage.ihug.co.nz/~johnhb/
gliding page http://www.soar.co.nz/
=====================================================
------------------------------
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End of Linux-Networking Digest
******************************
