vi
Verifying the configuration ································································································································· 137
Troubleshooting IPv6 basics configuration ················································································································ 140
Symptom
······························································································································································· 140
Solution ································································································································································· 140
DHCPv6 overview ··················································································································································· 141
DHCPv6 address/prefix assignment
·························································································································· 141
Rapid assignment involving two messages······································································································· 141
Assignment involving four messages ················································································································· 141
Address/prefix lease renewal ···································································································································· 142
Stateless DHCPv6 ························································································································································· 143
Protocols and standards ·············································································································································· 143
Configuring the DHCPv6 server ····························································································································· 144
Overview······································································································································································· 144
IPv6 address assignment ···································································································································· 144
IPv6 prefix assignment ········································································································································ 144
Concepts······························································································································································· 145
DHCPv6 address pool ········································································································································ 146
IPv6 address/prefix allocation sequence ········································································································· 147
Configuration task list ·················································································································································· 147
Configuring IPv6 prefix assignment ··························································································································· 147
Configuration guidelines ···································································································································· 148
Configuration procedure ···································································································································· 148
Configuring IPv6 address assignment························································································································ 149
Configuration guidelines ···································································································································· 149
Configuration procedure ···································································································································· 149
Configuring network parameters assignment ··········································································································· 150
Configuring the DHCPv6 server on an interface ······································································································ 151
Configuration guidelines ···································································································································· 151
Configuration procedure ···································································································································· 151
Displaying and maintaining the DHCPv6 server ······································································································ 152
DHCPv6 server configuration examples ···················································································································· 153
Dynamic IPv6 prefix assignment configuration example ················································································ 153
Dynamic IPv6 address assignment configuration example············································································· 155
Configuring tunneling ············································································································································· 157
Overview······································································································································································· 157
IPv6 over IPv4 tunneling ····································································································································· 157
IPv4 over IPv4 tunneling ····································································································································· 159
IPv4 over IPv6 tunneling ····································································································································· 160
IPv6 over IPv6 tunneling ····································································································································· 161
Protocols and standards ····································································································································· 162
Tunneling configuration task list ································································································································· 162
Configuring a tunnel interface ···································································································································· 162
Configuring an IPv6 over IPv4 manual tunnel··········································································································· 163
Configuration example ······································································································································· 164
Configuring a 6to4 tunnel
··········································································································································· 166
6to4 tunnel configuration example ··················································································································· 167
Configuring an ISATAP tunnel ···································································································································· 170
Configuration example ······································································································································· 170
Configuring an IPv4 over IPv4 tunnel ························································································································ 173
Configuration example ······································································································································· 174
Configuring an IPv4 over IPv6 tunnel ························································································································ 176
Configuration example ······································································································································· 177
Configuring an IPv6 over IPv6 tunnel ························································································································ 179