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Enabling NAT-PT ··················································································································································· 36
Configuring a NAT-PT prefix ································································································································ 36
Configuring IPv4/IPv6 address mappings on the IPv6 side ············································································· 36
Configuring IPv4/IPv6 address mappings on the IPv4 side ············································································· 38
Setting the ToS field after NAT-PT translation ····································································································· 39
Setting the Traffic Class field after NAT-PT translation ······················································································ 39
Configuring static NAPT-PT mappings of IPv6 servers ······················································································ 40
Displaying and maintaining NAT-PT ···························································································································· 40
NAT-PT configuration examples ··································································································································· 41
Configuring dynamic mapping on the IPv6 side ······························································································· 41
Configuring static mappings on the IPv4 side and the IPv6 side ····································································· 42
Troubleshooting NAT-PT ················································································································································ 44
Symptom ································································································································································· 44
Solution ··································································································································································· 44
Configuring ALG ························································································································································ 45
ALG overview ································································································································································· 45
Configuring ALG in the Web interface ························································································································ 47
ALG configuration examples in the Web interface ···································································································· 47
FTP ALG configuration example ·························································································································· 47
SIP/H.323 ALG configuration example ············································································································· 51
NBT ALG configuration example ························································································································· 54
Enabling ALG at the CLI ················································································································································ 58
ALG configuration examples at the CLI ······················································································································· 58
FTP ALG configuration example ·························································································································· 58
SIP/H.323 ALG configuration example ············································································································· 59
NBT ALG configuration example ························································································································· 59
Index ··········································································································································································· 61
