Re: [squid-users] cisco wccp problem

From: Kuba Leszewski <[email protected]>
Date: Thu, 28 Aug 2003 08:15:59 +0200

Valentin Chopov wrote:
> what is the ouput of the "tcpdump proto gre" on the Squid box ?
>

08:23:58.346418 cache.mydomain.pl > router.mydomain.com.pl:
192.168.45.2.2048 > 192.168.45.1.2048: udp 52 (DF) (gre encap)
08:23:58.348503 router.mydomain.com.pl > cache.mydomain.pl:
192.168.45.1.2048 > 192.168.45.2.2048: udp 64 (gre encap)

and so on ...

the only difference is, that when I enter the ip wccp web-cache command
on the router,
than the first i_see_you from the router is ........ udp 20 (gre encap),
and not udp 64, but AFAIK that only the size of the udp datagram

but tell me,
if squid and cisco exchange here_i_am/i_see_you packets, and the ruter
noticed the cache and put it into visible cache engines list
then it have to be router's fault that it doesn't redirect the packets

either it has a bug ( i don't think so, since it's 12.3(1), so a pretty
new IOS), or it's configuration is wrong, or maybe it doesn't recognize
that the traffic passing through is http
how does it recognize http ? by destination port number ?

one more question:
does the redirected packets also go through the gre tunnel, or is the
tunnel only some sort of control connection ?

Kuba
Received on Thu Aug 28 2003 - 00:15:32 MDT

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