[ns] Traffic source as a sink?

[Dhammika Pathirana]

Hi,

Can we have a traffic source (i.e. CBR) as a sink? I have a traffic
source as a sink and it does not seem to handle incoming data. This
may sound like a silly question but I just want to clarify this. Also
is there a way to enable pkt receiving in tcl for traffic sources?
I've been hacking this odmrp code for past 3 days. May be I should
take a nap!!

thanks

dhammika