I use 2.2.16 kernel.
I found that there is a sk_buff structure in
there is a variable "unsigned in csum;" in
the sk_buff structure.
I want to know this checksum check what information.
Could you give me a hand, please?
In fact, I found 64byte and 1518byte UDP packet waste different
time to do masquerade(ip_fw_masquerade).
Many books say NAT just modify header fields, so it should no
different between small and big packet size.
I guess the different time due to csum_partial(h.raw, doff, sum)
in ip_fw_masquerade(). Right? Thanks a lot.
(But I can't find out source code of this function.)
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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:11 EST