Re: Could someone tell me the rules of port translation in SNAT ?

["ding dang" <jiadeip@xxxxxxxxxxx>]

> > Therefore unless you specify the port to be used, it will not be changed
> unless necessary, and if it is changed you cannot predict what it will
> become.

I'm reading some source code for more details, bu i stopped at

     return NF_HOOK(PF_INET, NF_IP_POST_ROUTING, skb, NULL, 
dev,ip_finish_output2);

in    ip_output.c::ip_finish_output()

cause i don't know what part of code does POST_ROUTING work and SNAT 
implementation.

Need your help, thanks.

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