scaunter at topscms.com
Sat Jan 15 18:47:12 CET 2011
From: varnish-misc-bounces at varnish-cache.org
[mailto:varnish-misc-bounces at varnish-cache.org] On Behalf Of Frank
Sent: January-15-11 3:31 AM
To: varnish-misc at varnish-cache.org
Subject: HTTP_X_FORWARDED_FOR handling
I'm using varnish-2.1.4 SVN 5447M and wonder how HTTP_X_FORWARDED_FOR
gets treatened by varnish.
In my VCL (which i partly copied from elsewhere) there are some lines
that i found in many VCLs around the net:
-- snip --
# Add a unique header containing the client address
set req.http.X-Forwarded-For = req.http.rlnclientipaddr;
I think this should do what i need: set a HTTP_X_FORWARDED_FOR header
containing the real client IP-Address and add it to the requests that
hit the backend. These lines are within sub vcl_recv.
I need the Client IP at the backend for some statistic stuff (ip based
Unfortunately i don't even get an empty HTTP_X_FORWARDED_FOR header.
It basically doesn't exist. I tried commenting these lines out and
also tried client.ip instead of req.http.rlnclientipaddr; as i found
this somewhere else - i don't know which the correct syntax is.
Is there anything else wrong? Or maybe some switch in my varnish
version that i need to set to make HTTP_X_FORWARDED_FOR appear for my
You don't get X-F-F unless you are going through some kind of appliance
As mentioned earlier, rewrite it to be client.ip if you need it.
e: scaunter at topscms.com :: m: (416) 561-4871
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