Thanks all.
1.So by your exp. that the stateful inspection
firewall(checkpoint,sonicwall) didn't face any problem with current internet
applications?
2.I saw the doc in RFC that the NAT will has problem with some security
mode(Like Kerberos 4,5) and NAT couldn't by itself support all applications
transparently and often must co-exist with application level gateways,is it
right?If yes,what kinds of applications should be special?
Regards,
Yale
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