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Hi Complete configuration of asa5510 is:ciscoasa(config)# show running-config: Saved:ASA Version 8.2(5)!hostname ciscoasaenable password 8Ry2YjIyt7RRXU24 encryptedpasswd 2KFQnbNIdI.2KYOU encryptednames!interface Ethernet0/0shutdownno nameifno securit...
I don't know what the problem was, but I reset the config of firewall and try again.Add commands on it:fixup protocol icmpdebug icmp traceThe problem was solved.Thanks.