Um..wouldn't the routing code handle this?
If you set a lla address and some other address on a interface like
192.168.0.2
or something and then a default route of 192.168.0.1, I
would assume that an application without specific knowledge that tries
to contact an external address would get 192.168.0.2 as the source
address and that the packet is sent to 192.168.0.1.
It should handle it; but I'd still want someone to check out various edge
conditions and pathological cases.
If you're in the situation that you need lla (no dhcp server available),
The presence or absence of a DHCP server is not a good indicator of the need or
desire for LLA and/or mDNS. It is quite possible that the system is in a mixed
environment where there are some systems which are LLA/mDNS only, others which
are DHCP/static/unicast DNS only, and others which handle both.
you wouldn't know the default route right?
I believe that there is a way to announce routing service via mDNS-SD; but I
don't know the details. (I would be astonished to discover that the people who
developed the zeroconfig design left that bit out...)
-Pat
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