> >1. When processing a Routing Header, hosts should only forward the > >packet to another node via the same interface by which it arrived. > > > >The first rule will allow the Mobile IP use of Routing > Headers, because > >in that case the packet is forwarded from a Care-Of address > to a Home > >address on the same node. It will also allow diagnostic uses like > >round-trip traceroute. Forwarding from an address on one > interface to > >an address on a second interface and then to a different > node via the > >second interface is not allowed. > > for mobile-ip6, i don't think there's a requirement to put > care-of address and home address onto the same > interface. forwarding > from care-of to home address may not be considered an "output" > in some stacks. therefore, i guess rule (1) should be augmented > to cover other implementation choices. "another node" > in the text > looks confusing for me.
I agree, there is no requirement to assign the care-of address and home address to the same interface and many implementations will in fact assign them to different interfaces. The rule does not prevent forwarding that is internal to the node - the "same interface" clause applies when forwarding the packet to another node. Rich -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
