Re: [squid-users] Transparent proxy issue

From: Henrik Nordstrom <>
Date: Tue, 17 Feb 2004 23:28:24 +0100 (CET)

On Tue, 17 Feb 2004, Mark Seamans wrote:

> Below is the squid.conf followed by the tcpdump of the XP box attempting
> transparent proxy. Last is the XP box trying to go directly to the
> proxy port. Both are not working.

This is a low-level problem. squid.conf is not relevant.

Looks like your XP is plain not listening to the return traffic for some

The symptom is identical in both cases. The client sends SYN, proxy
responds with SYN+ACK, retransmits, but the XP never seems to receive the
SYN+ACK sent by the proxy.

Do you have firewalling enabled on the XP?

Can it talk to other network services in the same network? Have you tried
for example pinging the proxy IP address or the address of another server
in your network?

Received on Tue Feb 17 2004 - 15:28:32 MST

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