R3303-HP 6600/HSR6600 Routers Layer 3 - IP Services Configuration Guide
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Configuration guidelines ···································································································································· 242
Configuration procedure ···································································································································· 242
Configuration example ······································································································································· 243
Configuring an IPv4 over IPv4 tunnel ························································································································ 245
Configuration prerequisites ································································································································ 245
Configuration guidelines ···································································································································· 246
Configuration procedure ···································································································································· 246
Configuration example ······································································································································· 247
Configuring an IPv4 over IPv6 manual tunnel ··········································································································· 249
Configuration prerequisites ································································································································ 249
Configuration guidelines ···································································································································· 250
Configuration procedure ···································································································································· 250
Configuration example ······································································································································· 250
Configuring an IPv6 over IPv6 tunnel ························································································································ 253
Configuration prerequisites ································································································································ 253
Configuration guidelines ···································································································································· 253
Configuration procedure ···································································································································· 254
Configuration example ······································································································································· 255
Displaying and maintaining tunneling ······················································································································· 258
Troubleshooting tunneling configuration ··················································································································· 258
Symptom ······························································································································································· 258
Solution ································································································································································· 258
Configuring GRE ····················································································································································· 259
Overview ······································································································································································· 259
GRE encapsulation format ·································································································································· 259
GRE encapsulation and de-encapsulation ········································································································ 260
GRE security features ·········································································································································· 260
GRE application scenarios ································································································································· 261
Protocols and standards ····································································································································· 262
Configuring a GRE over IPv4 tunnel ·························································································································· 262
Configuration guidelines ···································································································································· 262
Configuration prerequisites ································································································································ 263
Configuration procedure ···································································································································· 263
Configuring a GRE over IPv6 tunnel ·························································································································· 264
Configuration guidelines ···································································································································· 264
Configuration prerequisites ································································································································ 265
Configuration procedure ···································································································································· 265
Displaying GRE ···························································································································································· 266
GRE over IPv4 tunnel configuration example ············································································································ 266
GRE over IPv6 tunnel configuration example ············································································································ 269
Troubleshooting GRE ··················································································································································· 272
Configuring a point-to-multipoint GRE tunnel ········································································································ 273
Overview ······································································································································································· 273
How a P2MP GRE tunnel operates ···················································································································· 273
GRE tunnel backup at a branch ························································································································· 275
GRE tunnel backup at the headquarters ··········································································································· 275
Advantages and restrictions of the P2MP GRE tunnel technology ································································· 276
Configuring a P2MP GRE tunnel ································································································································ 276
Configuration prerequisites ································································································································ 277
Configuration procedure ···································································································································· 277
Displaying and maintaining P2MP GRE tunnels ······································································································· 278
Basic P2MP GRE tunnel configuration example ······································································································· 279
Network requirements ········································································································································· 279