tcpdump based packet generator

[kamal kc]

--- det_re <det_re at yahoo.com> wrote:
> has anyone seen or implemented packet generator
> capable of reading tcpdump trace file and resend the
> packets back into the wire through bpf in freebsd
> box?

if you are talking about capturing packets by
writing a program then you could use libpcap.a 
that provides an abstraction for the underlying
bpf.

man pcap would be a good help. 

sending custom packets can be done using raw sockets
(SOCK_RAW).

you can use IP_HDRINCL for including your custom 
ip header


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