Multihomed UDP server

[Poul-Henning Kamp]

In message <20040119143315.N81347 at news1.macomnet.ru>, Maxim Konovalov writes:
>On Mon, 19 Jan 2004, 12:07+0100, Poul-Henning Kamp wrote:
>
>> Simple question:
>>
>> Very simple UDP server daemon.
>>
>> Many clients (connect(2)'ing a socket for each is not an option)
>>
>> Multihomed machine.
>>
>> What's the simple trick to replying with the same source-IP as the
>> client used as destination-IP ?
>
>Probably bin/58012 worth to look (Multihomed tftpd enhancement).  Yes,
>it relies on protocol but still.

But that's not a general solution, and it certainly doesn't solve
the problem for my application.

I'm considering ways to make sendmsg(2)/recvmsg(2) DTRT, and my
current candidate is give them a flag bit which says "msg_name has
both addresses".

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.