Re: [LARTC] iproute2 is not routing

[Kelly Scroggins <kelly@cliffhanger.com>]

Quoting Stef Coene <stef.coene@docum.org>:
   
... snip ...

   > The routes appear to be correct as far as I can
   > tell.  I've even turned off the firewalling
   > (iptables) to see if that was the problem, but it
   > was not.
   >
   > What am I missing?

   Is the default gateway ok?  It points to 192.168.1.1 which is on a private 
   LAN connected to eth2.


I should have said in the original post.  This is
a lab behind an existing firewall.  The 'Internet'
in the topo drawing is a pretend Internet.  The
real Internet connection is on the other side of
192.168.1.1 (the 'inside-net').


   And if you want to ping from the lan to internet, you will need to do SNAT 
   (masquerading).  You need a rule like this :
   iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE


I needed that syntax anyway :)

... snip...


   > Is there a way to 'debug' like in a cisco router?
   You can use tcpdump.  Or an iptables rule with -j LOG and see what appears in 
   the logs.

tcpdump is not installed on this box.  And the
iptables rules are disabled.  In other words they
are all set to accept.  If I use the iptables
command you suggest, will it actually log
anything?


Thanks,
kelly

   
... snip ...

   Stef
   
   -- 
   
   stef.coene@docum.org
    "Using Linux as bandwidth manager"
        http://www.docum.org/
        #lartc @ irc.openprojects.net
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