On 05/04/2010 01:32 PM, Christopher Nielsen wrote:

> 
> On elkin, I can browse to ronda (links http://10.177.140.52) and see
> ronda's web output. ronda can ping 10.177.157.160, so basic connectivity
> works. Also, masquerading from dmz does not work (ronda cannot ping or
> browse the net), which might be a clue.

If the server can't access the internet, you can't reasonably expect to
access the server from the internet!

> If, on ronda, I 'ping 98.137.149.56' (that's yahoo.com), while doing
> 'tcpdump -i eth1' on elkin, I see nothing. but if I ping the
> gateway address (ping 10.177.157.160) then I do see output on tcpdump on
> elkin. Ronda works just fine if using the ISP supplied
> gateway, as you'd expect (173.203.204.1).

Sounds like the routing on ronda is hosed; the default route doesn't go
through elkin. Note that this is prominently mentioned in the DNAT
troubleshooting instructions detailed in Shorewall FAQs 1a and 1b.

> 
> One thing I do see on elkin is this message when shorewall is staretd,
> but it's not clear if this has anything to do with our problem.
>     kernel: [81069.656706] ip_tables: connlimit match: invalid size 32
> != 24

It means that your iptables is incompatible with your kernel.

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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