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Article #57282

Linux IP Routing

#57282
From: David Pinkerton
Date: Fri, 08 Nov 1996 00:00
65 lines
2846 bytes

I am trying to setup a linux box (kernel 1.2.1) to act as a router
between a dialup ppp connection (28.8K) and a WFW network running the
Microsoft TCP/IP stack.

I have re-complied the kernel with tcp/ip support (ip forwarding).  I am
able to establish a dialup ppp connection and I am able to
telnet/ping/ftp the outside world (eg.  ftp ftp.novell.com).  I am also
able to telnet/ping/ftp into the linux box from a WFW PC.

I am not able to telnet/ping/ftp from the WFW PC to the other side of the
linux box  (no error messages and no modem activity).

It also takes a very long time to telnet into the linux box while the ppp
link is up.

/etc/ppp/options
~~~~~~~~~~~~~~~~
/dev/cua1 38400 debug crtscts modem noipdefault defaultroute debug kdebug 1


output from route:
~~~~~~~~~~~~~~~~~~
Kernel routing table
Destination     Gateway         Genmask         Flags MSS    Window Use Iface
max1.Brisbane.a *               255.255.255.255 UH    1436   0        2 ppp0
192.192.192.0   *               255.255.255.0   U     1436   0      659 eth0
loopback        *               255.0.0.0       U     1936   0        1 lo
default         max1.Brisbane.a *               UG    1436   0       35 ppp0

output from ifconfig:
~~~~~~~~~~~~~~~~~~~~~
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING  MTU:2000  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
          TX packets:15 errors:0 dropped:0 overruns:0

ppp0      Link encap:Point-Point Protocol
          inet addr:203.12.188.123  P-t-P:203.12.179.137  Mask:255.255.255.0
          UP POINTOPOINT RUNNING  MTU:1500  Metric:1
          RX packets:26 errors:0 dropped:0 overruns:0
          TX packets:31 errors:0 dropped:0 overruns:0

eth0      Link encap:10Mbps Ethernet  HWaddr 00:A0:24:5C:69:4C
          inet addr:192.192.192.32  Bcast:192.192.192.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:837 errors:0 dropped:0 overruns:0
          TX packets:730 errors:0 dropped:0 overruns:0
          Interrupt:10 Base address:0x300


Is the something blatantly obvious that I am missing?

Any suggestions would be welcomed.  Please email me direct.


Thank you.


David Pinkerton
davidhp@ozemail.com.au

PS.  The 192.192.192.0 network is a bogus network number.
Technical Details
Message-ID: <55v48h$d9o_001@cpe.Brisbane.aone.net.au>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail

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From: davidhp@ozemail.com.au (David Pinkerton)
Subject: Linux IP Routing
Date: 1996/11/08
Message-ID: <55v48h$d9o_001@cpe.Brisbane.aone.net.au>
X-Deja-AN: 195257675
organization: Customer of Access One Pty Ltd, Melbourne, Australia
newsgroups: aus.computers.linux