freebsd-hackers Digest, Vol 42, Issue 6

[YACINE GHANJAOUI]

Hi,
when trying to intercept UDP packet after changing the protocol number
from 17 to a user one (99) in the ip_input.c file. when trying to
regenrate the packet after inserting some bit errors an error message
appears in the reciever telling that The udp checksum is incorrect even if
i just change the ip Header.
What do you think the problem is?
Thanks in Advance,