jiten shah writes: > Consider a topology where two routers are connected back to back. these link > have only a IPv6 link local address. I want to ping a global address on the > other switch through this link. RFC 3484 says that for selecting the source > address : > > It is RECOMMENDED that the candidate source addresses be the set of > unicast addresses assigned to the interface that will be used to send > to the destination. (The "outgoing" interface.) On routers, the > candidate set MAY include unicast addresses assigned to any interface > that forwards packets, subject to the restrictions described below. [...] > > So since in my topology the outgoing link does not have a global v6 address I > need to use address on other interface but I do not understand the above > condition. Can someone simplify it on what basis we can use the addresses > on the other interface ? Can some one please explain me
Since the requirements language is RECOMMENDED and MAY, you're free to use addresses on other interfaces any time you have a good reason to do so. Hence it's ok to use a global address from another interface as the source address of a ping in the case you describe. -Dave -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
