Re: [squid-users] WCCP: Web Cache ID 0.0.0.0

From: Henrik Nordstrom <hno@dont-contact.us>
Date: Mon, 3 Oct 2005 23:26:52 +0200 (CEST)

On Mon, 3 Oct 2005, Shoebottom, Bryan wrote:

> Yes. It assigns the buckets and starts forwarding http packets but the
> proxy doesn't seem to respond.

Then the next is to verify the WCCP/GRE decapsulation. This is done by
running tcpdump. With tcpdump you should see both

a) The GRE packets coming from the router
b) The decapsulated TCP/IP packets with the source of the clients

tcpdump -i any -n

If you only see 'a' then the GRE decapsulation is not configured proper.

If you see 'b' but the packets seems to be completely ignored then the
problem is your firewall/nat rules for intercepting port 80 traffic on the
proxy, or perhaps routing policy if running Linux (rp_filter needs to be
disabled when using GRE).

If you see 'b' and also response packets then all the networking is set up
proper, and your problem is within the proxy config.

Regards
Henrik
Received on Mon Oct 03 2005 - 15:26:54 MDT

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