Re: Sending packets through different interfaces and with different IPs to the same destination

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Any idea about this?

Any help would be much appreciated. Thanks
Javi


2008/11/28 Javier Gálvez Guerrero <javier.galvez.guerrero@xxxxxxxxx>:
> Hi all,
>
> I want to monitor the quality of two different interfaces on a
> client-server architecture. Let the interfaces be a wired ethernet
> (eth0) and a wireless adapter (ath0). I want to use IPERF to get
> performance statistics from these two interfaces. In the server I
> start two different IPERF processes with two different ports (60301
> for ath0 connections and 60302 for eth0 connections) listening to the
> client to send dummy packets in order to get statistics.
>
> In the client side I have configured interface ath0 with IP x.x.x.178
> and eth0 with IP x.x.x.179 and I want the IPERF process sending
> packets to server port 60301 (this is an argument for IPERF) sends
> them through the ath0 interface with IP 178 and IPERF process sending
> packets to server port 60302 does it through the eth0 interface with
> IP 179, just as they are configured. Then the server receives these
> packets and process them properly (acknowledging them through the
> correct client interface and IP). It could be seen as a sort of
> interface load balancing, but all load balancing examples I've found
> on the Internet are targeted to router load balancing, and that's not
> what I want.
>
> I've been reading some iptables documentation through the official
> site and other similar cases found googling and I've tried some
> configurations with IPTABLES and IP ROUTE (I have used SNAT, TOS and
> MARK) in order to get this working but everything I've tried hasn't
> worked. Always some links fail to get the proper IP or MAC and the
> configuration becomes unstable after a while, working correctly once
> and the next time wrong.
>
> I would like someone to help me with any piece of advice, idea or
> similar experience reporting, then I can make this work as desired.
> Any help would be much appreciated.
>
>
> Regards,
> Javi
>
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