Force a SIP friend to use a certain IP?

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> —–Mensaje original—–
> De: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
>
> Suppose I have two IP aliases on one asterisk box.
>
> I have to talk to SIP friend “A” using IP x.x.x.x and I have to talk to
> SIP friend “B” using IP y.y.y.y.
> (In case you’re wondering, the reason is that we have two accounts with
> a service provider and different features and rates are tied to the two
> different accounts.)
>
> So I was hoping I would be able to set the source IP that we use when
> talking to the two different SIP friends. I see externip in general
> options, but is there nothing equivalent that can be set per user/peer?
>

Perhaps it could be achieved configuring different newtwork interfaces (or different ports) for the two peers (or two set of peers) and using iptables to change the source address of outgoing packets through SNAT rules.

Best Regards,
José Miguel

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