Re: UDP question.

[xixi lii]

2006/9/15, Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>:
> >> bind socket1.network adapter1...
> >> bind socket2 network adapter2
>
> > I am not really sure, but I think the bind to an adapter under linux only
> > chooses the source ip, not really the adapter used to send the packets.
>
> To explicitly send things through a specific interface, you need to use
> some magic, like PF_RAW. ping for example is one program that will do
> this (-I option).
>
> > Did you check that the two destination ips have routes through different
> > interfaces, and not go out through the same one?
>
> One cannot have the same subnet on multiple interfaces, because ARP
> queries will only be sent through the first one. You need br0 (or bond0
> - depending on how you plan to plan your network) to make them one
> interface.
>
>
> Jan Engelhardt
> --

My two adapters has two different IP address, and I bind one IP on one socket,
do you mean that I alloc two socket and bind different IP is not
helpful? In fact, all the packet sent from two socket is go out by one
network adapter?

xixi
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