Re: problem with IP-forwarding

Tiago Greco (tgreco@iname.com)
Mon, 21 Jun 1999 09:15:34 -0300


Alex,

How's configurated your route to the internal and default gateway?
In the router of your external, is there a route for your internal passing
thru your Linux?

Tiago Greco
tgreco@iname.com
----- Original Message -----
From: Alex Guryanow <gav@nlr.ru>
To: <linux-net@vger.rutgers.edu>
Sent: Saturday, June 19, 1999 5:46 PM
Subject: problem with IP-forwarding

> I have the server with 2 Ethernet adapters SMC Ultra. One card is
> attached to the internet with twisted pair, the another with BNC to
> local segment . The kernel is compiled with enabled IP_FORWARDING, the
> file /etc/sysconfig/network contains the line FORWARD_IPV4="yes".
> Problem: the internal hosts do not see the rest world - when I truing to
> ping external host from internal box I receive "No response from remote
> host" . But I can ping any host (any external and any internal) from the
> server. The operating system on server is RedHat 5.1, kernel 2.0.34 with
> standard drivers for NIC's. With the kernel 2.0.37 the problem still
> persists. If I attach to the first card another local segment with BNC,
> the computers from one segment can reach the computers from another. Can
> anybody help me to solve this problem or say what tools should I use, to
> specify the reason?
>
> with best regards,
> Alex
>
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