One 2.6.9 machine sends to its own link-local address some packets. But
it simply can't receive those packets, for both TCP and UDP. If will
succeeded if:
- sending to a global address instead of a link-local one;
- or, machine A sends packets, machine B will receive them;
- or, 2.6.15 *do* receive TCP packets it sends to its link-local
address. But UDP still fail.
It seems to be a known issue since 2.6.15 shows some improvement. But I
can't find anything in mailing list archive. Any pointer?
And, there's a dummy route entry in 2.6.* route table, which use
loopback_dev as reference device to link-local address. It seems really
odd. Is it related to the problem I just asked? And why Linux IPv6 stack
did that?
Thanks in advance.
-Ed
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