IPv4 source routing options and IPv6 Type 0 Routing Header

Hello, folks, Quite a few times it has been mentioned to me that some peering agreements require support for the IPv4 source routing options. I was wondering whether this is still the case for some ISPs, or it is not the case anymore. I was also wondering if it has ever been the case that IPv6 peering agreements have required support for Type 0 Routing Header and, if it has, whether that still happens nowadays. (I guess not, but....) Thanks so much! Kind regards, -- Fernando Gont e-mail: fernando@gont.com.ar || fgont@acm.org PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1