Re: libnet seems to write to the wrong interface

Hey Chris,

Uhm, I've never seen that before.  Perhaps if you could just pick out
the relevant parts of your code??

-Aaron

On Fri, Oct 22, 2004 at 03:46:55PM -0000, Chris Nelson wrote:
> I'm trying to write a little program that acts like an IGMPv2 host,
> sending IGMP Reports at startup, listening for IGMP Query messages,
> and sending IGMP Reports in response after a random delay (unless
> another host beats it to the punch).  If I get it working -- and can
> figure out where to post it -- I'll be glad to add it to the libnet
> samples.
>
> I've heavily adapted icmp_echo_cq.c and added code from a pcap sample
> to listen for IGMP messages then use libnet to respond.  I'm
> initializing libnet and libpcat with the same device string.  However,
> my system has two interfaces and I'm seeing Query messages on eth1
> (the device I specified) but sending Report messages out eth0 (as
> confirmed by Ethereal).
>
> Can someone explain to me why libnet would send on an interface other
> than the device passed to libnet_init()?  I'll be glad to show you my
> code but I don't see anyway to attach it here and 300 lines is a bit
> much to paste into this message.
>
> TIA.
>
>                                  Chris

-- 
Aaron Turner <aturner at pobox.com|synfin.net>  http://synfin.net/
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