I didn't see lvs-devel on the cc list. Hope you
don't mind if I forward this.
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
---------- Forwarded message ----------
Date: Thu, 10 Jan 2008 15:14:23 +0100
From: Raphael Vallazza <raphael@xxxxxxxxxx>
To: Joseph Mack NA3T <jmack@xxxxxxxx>
Subject: Re: [PATCH] Transparent proxy support for LVS with localnode and
i wrote a very simple patch for ipvs that enables a kernel config option
that allows to choose where IPVS intercepts incoming connections. These are
- LOCAL_IN (default: works as usual)
- PRE_ROUTING (puts LVS input right after the mangle PREROUTING and before
the nat PREROUTING chain)
neat. I thought it was hard enough to move that it wouldn't be just an option
Hehe, yes, it was pretty easy ;)
what we'd really like is ipvs hooked into the FORWARD chain. Can you do this
To be honest i don't understand the reason for hooking LVS into the FORWARD
chain, because this way it would not get the LOCAL_IN traffic and at the same
time it would have the same NAT problem as with the LOCAL_IN hook. Maybe i'm
missing something, but it seems that PREROUTING is the best point for LVS to
act like a real router, because it gets packets that haven't been NATed yet.
The only negative thing is that traffic can't be filtered in a regular way, but
using fwmark and the mangle table the user can select the traffic that has to
be handled by LVS.
If you like i can also add this option, but i'm not sure if it's really useful
I tried it on some test boxes and it seems to work pretty well, i'll do some
stress testing in the next few days. I could send you a setup example if you
Ok, i'll try to write a short document/example ASAP.
:: e n d i a n
:: open source - open minds
:: raphael vallazza
:: phone +39 0471 631763 :: fax +39 0471 631764
:: http://www.endian.com :: raphael (AT) endian.com
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