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[cjwddhfys]

Do most NAT device support protocol 41?
And in which way it deal with when it receive such a packet?

THX!!!

[kriteknetworks]

You'd have to check your devices documentation, or their website for specs. Please note you only have to post once, if someone can answer, they will. Also, when you ask a question, please provide specific details, that way you can get better responses. No one likes to guess based on lack of information, thanks.

[broquea]

Should also try searching the forums:

http://www.tunnelbroker.net/forums/index.php?topic=27.0