Re: Policy routing on local packets

[Jason Voorhees <jvoorhees1@gmail.com>]

Thanks everyone for your answers. I've already knew that the iptables 
rule in POSTROUTING chain would be the solution but I was learning 
iproute2 and its usage.
So that's why I was trying iptables marking + iproute2 rules.

Thanks :)

Pascal Hambourg escribió:
> Gerardo Castillo Alvarado a écrit :
> > Andreas Onderka escribió:
> > > iptables -t nat -A POSTROUTING -p tcp -o <extIF> --sport 25 -j SNAT
> > > --to-source <IP2>
> >
> > Don't forget that the SNAT target is for static ip.
> >
> > Otherwise, you should use MASQUERADE if you are on a dynamic IP address.
>
> Irrelevant. MASQUERADE does not allow to specifiy the new source 
> address. It just uses the default interface address. In other words, it 
> would do nothing.