R3102-R3103-HP 6600/HSR6600 Routers Layer 3 - IP Services Configuration Guide
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Configuration guidelines ···································································································································· 241
Configuration procedure ···································································································································· 241
Configuration example ······································································································································· 242
Configuring an IPv4 over IPv4 tunnel ························································································································ 244
Configuration prerequisites ································································································································ 244
Configuration guidelines ···································································································································· 245
Configuration procedure ···································································································································· 245
Configuration example ······································································································································· 246
Configuring an IPv4 over IPv6 manual tunnel ··········································································································· 248
Configuration prerequisites ································································································································ 248
Configuration guidelines ···································································································································· 249
Configuration procedure ···································································································································· 249
Configuration example ······································································································································· 249
Configuring an IPv6 over IPv6 tunnel ························································································································ 252
Configuration prerequisites ································································································································ 252
Configuration guidelines ···································································································································· 252
Configuration procedure ···································································································································· 253
Configuration example ······································································································································· 254
Displaying and maintaining tunneling configuration ······························································································· 257
Troubleshooting tunneling configuration ··················································································································· 257
Symptom ······························································································································································· 257
Solution ································································································································································· 257
Configuring GRE ····················································································································································· 258
Overview ······································································································································································· 258
GRE encapsulation format ·································································································································· 258
GRE encapsulation and de-encapsulation ········································································································ 259
GRE security features ·········································································································································· 259
GRE application scenarios ································································································································· 260
Protocols and standards ····································································································································· 261
Configuring a GRE over IPv4 tunnel ·························································································································· 261
Configuration guidelines ···································································································································· 261
Configuration prerequisites ································································································································ 262
Configuration procedure ···································································································································· 262
Configuring a GRE over IPv6 tunnel ·························································································································· 263
Configuration guidelines ···································································································································· 263
Configuration prerequisites ································································································································ 264
Configuration procedure ···································································································································· 264
Displaying GRE ···························································································································································· 265
GRE over IPv4 tunnel configuration example ············································································································ 265
GRE over IPv6 tunnel configuration example ············································································································ 268
Troubleshooting GRE ··················································································································································· 271
Configuring a point-to-multipoint GRE tunnel ········································································································ 272
Overview ······································································································································································· 272
How a P2MP GRE tunnel operates ···················································································································· 272
GRE tunnel backup at a branch ························································································································· 274
GRE tunnel backup at the headquarters ··········································································································· 274
Advantages and restrictions of the P2MP GRE tunnel technology ································································· 275
Configuring a P2MP GRE tunnel ································································································································ 275
Configuration prerequisites ································································································································ 276
Configuration procedure ···································································································································· 276
Displaying and maintaining P2MP GRE tunnels ······································································································· 277
Basic P2MP GRE tunnel configuration example ······································································································· 278
Network requirements ········································································································································· 278