From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcus Sundberg <marcus@ingate.com>
Subject: Re: Checksum of IP header
Date: Sun, 26 Jun 2005 20:13:33 +0200
Message-ID: <42BEF04D.8040708@ingate.com>
References: <ada605fb050626041856c71794@mail.gmail.com>
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To: John Que <qwejohn@gmail.com>
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John Que wrote:
>        Namely, what I change is :
>                skb->nh.iph->daddr = newIPAddress (in u32 ).
> 
>        Everything works OK and the packets are sent to the new
>        destination as I can see with the sniffer; except foo the csum.

Have a look at the ip_nat_cheat_check() function in ip_nat_core.c -
it does exactly what you want.

//Marcus
-- 
---------------------------------------+--------------------------
  Marcus Sundberg <marcus@ingate.com>  | Firewalls with SIP & NAT
 Software Developer, Ingate Systems AB |  http://www.ingate.com/