Francois, > I try to ping some routers on one of their Subnet-Router anycast addresses > (SRAA). > (http://tools.ietf.org/html/rfc4291#section-2.6.1) > > Some (Cisco) reply with an unicast source address (same subnet prefix). > Another one (Alcatel) reply with the SRAA as source address. > A Linux kernel in IPv6 forwarding mode behave like the Cisco router. > > The RFC 4291 removed the restrictions on using IPv6 anycast addresses, so a > SRAA may be used as a source address. > > Is there an RFC which describe the reply source address that must be used ?
not as far as I know. the closest we have is probably http://tools.ietf.org/html/draft-itojun-ipv6-anycast-analysis-02 6rd is one of the few applications using the Subnet router anycast. we thought it useful for troubleshooting and then particularly as a way to identify BR if the reply was the BR's unicast address instead of the anycast. your mileage may vary. cheers, Ole -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
