H3C Technologies H3C SecPath F1000-E - Manual (Page 6)

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Configuring GRE ·························································································································································· 1
Overview ············································································································································································ 1
GRE encapsulation format ······································································································································· 1
GRE encapsulation and de-encapsulation processes ··························································································· 2
GRE security options ················································································································································ 2
GRE applications ······················································································································································ 3
Protocols and standards ·········································································································································· 4
Configuring a GRE over IPv4 tunnel ······························································································································· 4
Configuring a GRE over IPv4 tunnel in the web interface ··················································································· 4
GRE over IPv4 tunnel configuration example in the web interface ····································································· 6
Configuring a GRE over IPv4 tunnel at the CLI ·································································································· 10
GRE over IPv4 tunnel configuration example at the CLI ···················································································· 11
Configuring a GRE over IPv6 tunnel ···························································································································· 14
Configuration guidelines ······································································································································ 14
Configuration prerequisites ·································································································································· 15
Configuration procedure ······································································································································ 15
GRE over IPv6 tunnel configuration example ····································································································· 16
Displaying and maintaining GRE ························································································································ 19
Troubleshooting GRE ····················································································································································· 19
Configuring a point to multi-point GRE tunnel ········································································································· 21
P2MP GRE tunnel overview ··········································································································································· 21
Operation of the P2MP GRE tunnel ····················································································································· 21
P2MP GRE tunnel backup ····································································································································· 23
Advantages and restrictions of the P2MP GRE tunnel technology ··································································· 24
Configuring a P2MP GRE tunnel in the web interface ······························································································· 25
Configuration prerequisites ·································································································································· 25
Configuration task list ··········································································································································· 25
Configuring a P2MP GRE tunnel interface ········································································································· 26
Displaying information about established P2MP GRE tunnels·········································································· 28
Basic P2MP GRE tunnel configuration example ································································································· 29
Configuration example for P2MP GRE tunnel backup at the headquarters ···················································· 33
Configuration example for P2MP GRE tunnel backup at a branch ································································· 43
Configuring a P2MP GRE tunnel at the CLI ················································································································· 49
Configuration guidelines ······································································································································ 49
Configuration prerequisites ·································································································································· 49
Configuration procedure ······································································································································ 49
Displaying and maintaining P2MP GRE tunnels ································································································ 51
Basic P2MP GRE tunnel configuration example ································································································· 51
Configuration example for P2MP GRE tunnel backup at the headquarters ···················································· 53
Configuration example for P2MP GRE tunnel backup at a branch ································································· 57
Configuring AFT ························································································································································· 61
Overview ········································································································································································· 61
Application scenario ············································································································································· 61
Basic concepts ······················································································································································· 61
AFT modes ····························································································································································· 62
AFT operation ························································································································································ 63
DNS64 function ····················································································································································· 65
AFT limitations ························································································································································ 65