[Gllug] Routing question

[Adrian McMenamin]

On Sun, 2005-01-09 at 19:06 +0000, Martin A. Brooks wrote:
> Adrian McMenamin wrote:
> 
> >My mail/squid server - on the wired network - seems to think that
> >everything that comes from the wireless universe in fact comes from the
> >gateway - see the header from an outbound email below.
> >
> >
> >Received: from 192.168.63.22 (electra [192.168.62.64])
> >  
> >
> 
> Well, yes, everything from the wireless universe _does_ come from the 
> gateway.  I may be misunderstanding what you mean.
> 
> Mart.
> 

Err, yes, I know what you mean, I didn't explain it too clearly.

I mean it seems to have difficulty in ascertaining the real IP address
of the connecting system.

The email header is one example, the squid log entries below are another
example...

1105299657.117     14 192.168.62.64 TCP_IMS_HIT/304 205 GET
http://www.bbc.co.uk/cbbc/smile/games/images/drop_beatz_animated.gif -
NONE/- image/gif
1105299657.197     21 192.168.62.64 TCP_IMS_HIT/304 205 GET
http://www.bbc.co.uk/cbbc/smile/player/images/sm_player1.gif - NONE/-
image/gif
1105299657.208     11 192.168.62.64 TCP_IMS_HIT/304 205 GET
http://www.bbc.co.uk/cbbc/smile/games/images/play2.gif - NONE/-
image/gif


None of these requests came directly from the gateway. In my old setup -
where squid was on a box used for all sorts of other things, this
wouldn't have beenr ecorded in this way, but I suspect I also put an
entry in the kernel routin table explicitly nominating a gateway for
that network (ie 192.168.63.64, the IP address of the wireless nic on
the gateway) - is that the reason?

The kernel routing table on the mail/squid server is now very simple:

[root at flare adrianmail]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
192.168.62.0    *               255.255.255.0   U     0      0        0
eth0
127.0.0.0       *               255.0.0.0       U     0      0        0
lo
default         electra         0.0.0.0         UG    0      0        0
eth0

(electra is 192.168.62.64)


-- 
Adrian McMenamin <adrian at mcmen.demon.co.uk>
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