[Gllug] slightly ot: confused network

[Jan Minar]

On Wed, Dec 22, 2004 at 05:45:12PM +0000, Minty wrote:
> me=confused, looking for ideas....
> 
> wireless access point log is showing:
> 
> TCP connection rejected from 192.168.12.4:54832 to 192.168.5.2:113 (eth1)
> 
> 192.168.5.2 is the wireless access point, which is nat'ing all the
> clients connected to it (so all wireless clients appear on the network
> to be the AP).
> 
> 192.168.12.4 is my mailserver, debian, exim, courier (imap).  
> 
> I appear to get one log entry each time I try and send an email
> (thunderbird, sending mail via exim on 192.168.12.4)
> 
> I can't find anything unhappy in the logs of the mailserver, and I can
> send and recieve email no probs.
> 
> So it's not a huge problem, but I am curious.  Why is the mailserver
> trying to ident the client?  Do I have some half arse authentication
> I've messed up?

Google ident exim, 1st link:

http://www.exim.org/pipermail/exim-users/Week-of-Mon-19980413/007377.html

You maybe want Your NAT set up to let the queries thru, or issue a fake
identification.  There are quite a lot of software that foolishly
requires a valid ident response.

HTH.
-- 
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