Hello,
look at directory /proc/sys/net/ipv4
and check the value in the file
ip_forward.
The value must be set to
1.
regards
Steve
----- Original Message -----
From: <romba@fem.maschinenbau.uni-dortmund.de>
To:
<suse-security@suse.com>
Sent:
Monday, October 18, 1999 10:50 AM
Subject: [suse-security] Firewall/router -
doesn't forward
>
> Hello!
>
> We are currently
trying to build a packet filtering firewall using
> SUSE Linux 6.2 and
ipchains. The hardware used is a Pentium 133 with
> two Level One NICs
using the Realtek 8139 chipset.
>
> >From what we read in the
literature (Firewall and Ipchains HowTo,
> several articles in the german
magazine ct etc.) it seemed quite
> manageable, but then reality
struck.
>
> After several successless tests with a bigger
installation we set up
> an installation almost identical to the one
shown in part 6.3 of the
> "Firewall and Proxy Server HOWTO" written by
Mark Grennan, the only
> difference being the IP-adresses for the outside
part.
>
> Our setup passes all the tests described except one - it
doesn't
> forward. I can ping any computer from the firewall/router,
I
> can ping both sides of the firewall from the LAN, but I can only
ping
> the outside adress from the outside and I can't get through
it.
> IP-forwarding is switched on and all default policies in ipchains
are
> set to ACCEPT.
>
> We are quite desperate (and my boss
is losing patience), so any ideas
> are highly welcome. Might it be useful
to try some other network
> adapters? Is there something we have
overlooked? Is there a fault in
> the HOWTO?
>
> Best
regards
>
>
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