Hi,All, Haproxy has a custom defined protocol called "proxy protocol", it's aimed to chain proxies / reverse-proxies without losing the client information. In the past days I used tproxy , but I have to change architecture and change routes manually, it's diffcault to maintained. Can squid support this function? p.s. some useful links: http://blog.exceliance.fr/haproxy/proxy-protocol/ http://haproxy.1wt.eu/download/1.5/doc/proxy-protocol.txt Regards Simon
