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SubjectRe: [OT] ipv4: how to choose src ip?
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On Fri, 6 Dec 2002 07:37, Richard B. Johnson wrote:
> > I'm not interested in rewriting the source address with netfilter based
> > on destination and/or service; What I'm looking for is rather a way to
> > initiate two connections to the same destination host using the two
> > different source IP addresses.
>
> The simple answer is that if you need a specific IP address
> associated with a "multi-honed" host, that has only one interface,
> then something is broken. And you get to keep the pieces.

There are some reasons why you might like to use a specific address on a
machine that is multi-homed, although normally the logic in the kernel works
fine. I won't try to explain it in detail at this stage, but link-local is a
personal favourite.

Probably all you want is to use the SO_BINDTODEVICE socket option.

Brad
- --
http://linux.conf.au. 22-25Jan2003. Perth, Aust. I'm registered. Are you?
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