If you can't find anything, I wrote a small packet
sniffing program(c code, linux only, uses raw sockets)
that you could tweak to do this.
wget http://www.turbobit.com/software/snif-0.1.11.tgz

Karl.

On Sun, Jun 30, 2002 at 06:37:32PM -0500, twakefield at stcloudstate.edu wrote:
> To troubleshoot a network problem, I want to transmit an Ethernet
> packet after receiving a specific packet. Basically I will be
> simulating a DHCP transaction. The transmitted packet will
> be edited versions of a captured packet. What is the easiest way
> to do this?
> 
> Thanks
> 
> Thad Wakefield                  Phone: 320-255-4764        
> Network Specialist              Fax:   320-255-4778
> St Cloud State University
> 720 4th Av S  MC108
> St Cloud,  MN  56301 
> _______________________________________________
> Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota
> http://www.mn-linux.org
> tclug-list at mn-linux.org
> https://mailman.mn-linux.org/mailman/listinfo/tclug-list