Hello, accidently I've found the following (I do not remember it on mailing list):
https://github.com/haproxy/haproxy/compare/master...felixbuenemann:source-hdr_ip-ipv6-support Fix source usesrc hdr_ip() parsing for IPv6 The current parsing code for source <addr> usesrc hdr_ip() hardcodes the assumption that the header will contain an IPv4 address. If it contains an IPv6 address, a wrong IPv4 address will be generated from it. This fix checks if the header contains an IPv4 address, by checking if it contains at least one dot, but no colons. Otherwise the address is parsed as an IPv6 address.
