On Sat, 2012-03-31 at 16:38 -0500, Les Mikesell wrote: > On Sat, Mar 31, 2012 at 3:24 PM, Peter Eckel <li...@eckel-edv.de> wrote: > > 1. Each interface on an IPv6 enabled machine has several addresses. > > 2. Except for the Privacy Extension address(es), auto-configured a > How do applications choose the correct outbound address in that > scenario? That has always been a problem when using multiple ipv4 > addresses on the same interface in combination with firewalling, etc. > where the source address matters.
Typically the routing table does a lot of work. Much like 127.0.0.0/8 the mask of a link-local will make it unprefered by 'public' traffic. There is also a syntax for specifying the outbound interface for traffic. See <http://wmmi.net/documents/BasicIPv6.pdf> slide 24 - 26.
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