<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top"><p dir="ltr">I figured out the issue. Thanks all.</p>
<p dir="ltr">Amos : just fyi wccp cp runs over udp never gre.</p>
<p dir="ltr">Wccp gre is for the redirected traffic.</p>
<p dir="ltr">You can read wccp rfc and use tcpdump to learn more.</p>
</td></tr></table> <div id="_origMsg_">
<div>
<br />
<div>
<div style="font-size:0.9em">
<hr size="1">
<b>
<span style="font-weight:bold">From:</span>
</b>
Amos Jeffries <squid3@treenet.co.nz>; <br>
<b>
<span style="font-weight:bold">To:</span>
</b>
<squid-users@lists.squid-cache.org>; <br>
<b>
<span style="font-weight:bold">Subject:</span>
</b>
Re: [squid-users] Squid with wccp and gre return <br>
<b>
<span style="font-weight:bold">Sent:</span>
</b>
Sun, Nov 2, 2014 1:21:24 AM <br>
</div>
<br>
<table cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td valign="top">-----BEGIN PGP SIGNED MESSAGE-----<br clear="none">Hash: SHA1<br clear="none"><div class="yqt9268468213" id="yqtfd95619"><br clear="none">On 2/11/2014 7:05 a.m., Yogesh Gawankar wrote:<br clear="none">> Hello<br clear="none">> <br clear="none">> <br clear="none">> I am trying to get squid to send return traffic to the cisco<br clear="none">> router via a gre tunnel. I am observing that squid returns traffic<br clear="none">> in gre tunnel this is ip in ip gre not wccp-gre . The firewall is<br clear="none">> dropping this packet as expected. I have gone through many posts<br clear="none">> online so kindly respond if you know how to get it to send return<br clear="none">> traffic via wccp-gre (not standard gre) or if you had any<br clear="none">> suggestions for me in terms of linux kernel change.</div><br clear="none"><br clear="none">WCCP-GRE is for transmitting
WCCP protocol control packets informing<br clear="none">the router whether the proxy is still available or not. That is all.<br clear="none"><br clear="none">The HTTP traffic from router to Squid (wccp_forwarding_method) goes<br clear="none">through the GRE as if it were regular GRE.<br clear="none"><br clear="none">The HTTP traffic from Squid to router (wccp_return_method and regular<br clear="none">Squid->Internet connections) is normal traffic and needs routing as<br clear="none">such instead of dropping or diverting back towards Squid.<br clear="none"><br clear="none">Amos<br clear="none">-----BEGIN PGP SIGNATURE-----<br clear="none">Version: GnuPG v2.0.22 (MingW32)<br clear="none"><br clear="none">iQEcBAEBAgAGBQJUVYcUAAoJELJo5wb/XPRjYAwH/RQXc3S7bH5w/5lYdLyYRQ/H<br clear="none">Y2GT88IdeM8gz067OMkGR7lTwzIMK4EVmb9GEQJYhLNznZB8hFDYnNDmSL3spB9F<br clear="none">mxHYZ4BVlDTlMLi4qHf05mrpsdEodrhF9A3H8YmzXLWHx5sxyukLfR/R7UJlP14K<br
clear="none">S9xZa3KhKE/SERNM8iwPggNdtzdjrBhs6U2AUhmpeNjEgEiOgkgT7XRm724hMj21<br clear="none">9CH5kgGt4qiE5plPfSqTdyiJSBbQF5NL50g8/NSrQ4bRilTD9Fdf+kVRoSnscrAF<br clear="none">ViQKzc5L8s+3YMmVmXyynM0s4YPy5bj9Qgqi5nWjQG9gSBRLeedsyK1rdlcQmbQ=<br clear="none">=CQHA<br clear="none">-----END PGP SIGNATURE-----<br clear="none">_______________________________________________<br clear="none">squid-users mailing list<br clear="none"><a shape="rect" ymailto="mailto:squid-users@lists.squid-cache.org" href="javascript:return">squid-users@lists.squid-cache.org</a><br clear="none"><a shape="rect" href="http://lists.squid-cache.org/listinfo/squid-users" target="_blank">http://lists.squid-cache.org/listinfo/squid-users</a><div class="yqt9268468213" id="yqtfd75645"><br clear="none"></div></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>