Re: Traffic Mirroring for Debugging

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On Fri, 22 Aug 2008, Grant Taylor <gtaylor@xxxxxxxxxxxxxxxxx> writes:
> It won't help with the packet duplication, but I think it is related.  I think
> you will need to SNAT the traffic as it leaves 1.10 so that 1.2 / 1.20 will
> reply back to 1.10 rather than directly back to the client.  I think that 1.2 /
> 1.20 is replying directly back to the client and the client is going WTF???  Why
> is 1.2 / 1.20 replying to me?  I have not started a connection with
> them.

In the actual setup, original packets are received from a mobile device
through a VPN gateway. Therefore, endpoint server replies back to this
client, instead of the gateway packages received from.

> As far as packet duplication, I'd start with ulogd or something like
> that.  I'm betting you are going to have to pass the packets to user
> space for the duplication.

I'll check out ulogd. Thanks.


Regards.
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