On 4/03/09 03:16 AM, Kacheong Poon wrote: > Erik Nordmark wrote: > >> The strong end-system model (see RFC 1122) talks about restricting >> things both at the receiving and sending ends, and we have some RFEs >> asking for that. What this means in practice is that the source IP >> address constrains the interface on which the packet can be sent out, >> whether the source IP address was set by the application (doing a >> bind()), or set as part of accepting a new TCP/SCTP connection. > > > I guess an app will get a network unreachable error if > there is no route to a destination using the bound interface > even when there is a route using another interface? Can > an app enforce this restriction even if the system does not > (ip[6]_strict_src_multihoming is not set)? Via a socket > option?
The only platform I've seen anything remotely like this on is Solaris with the IP_BOUND_IF... Darren
