I haven't understood .
i means that :
example:
tow machines which behind firewall useing PAT
(the internal ip address 192.168.0.5 and 192.168.0.6)
begin to ping the same outside adress (200.x.x.x or any) ,
how does the pnat-firewall distinguish the reply icmp packets and forward
the packets to the correct desting address where requested. if can't ,the
request
can't get the correct information ,etc the time. I studied the
knowledge of tcp/ip, but i thought the icmp packets don't have enough
information
for distinguish it, and if using tcp ,the packet can use different source
ports to
distinguish between the different source addresses.
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