X-Forwarded-For header

Hello!

With "option forwardfor", haproxy adds X-Forwarded-For header at the end of header list.

But according to wikipedia:
http://en.wikipedia.org/wiki/X-Forwarded-For

and other HTTP proxies (say, nginx)
there is standard format to specify several intermediate IP addresses: X-Forwarded-For: client1, proxy1, proxy2

Why don't you use these standard procedure to add client IP? (I mean if X-Forwarded-For already exists in request headers, modify its value with client IP and do not create another header with the same name).

Thanks! Received on 2011/03/24 15:28