> Does anyone know of a freeware/open source program to generate
> packets? I'm having a checksum problem, and would like to generate
> packets that have a specific data pattern so it's easier to debug.
> I suppose I could try something with Visual Basic, but it's been
> awhile since I used that.....
I use "frameIP"[1] in its GUI version, since
it is very small and still does what I want in a very unixy-way (nothing
more than I need). But I suppose there is a lot of other useable software
like PacketBuilder from colasoft[2] or engage package builder[3] Other stuff might be found at the wikipedia page for
packet generators[4]
Be careful in corporate environments. Some virus scanners
and/or paranoid sysadmins really don't like packet generators in theri
networks...