IPv6 path MTU discovery ···································································································································· 138
IPv6 transition technologies ········································································································································· 138
Dual stack ····························································································································································· 139
Tunneling ······························································································································································ 139
Protocols and standards ·············································································································································· 139
Configuring IPv6 ND ··················································································································································· 144
Setting the hop limit ············································································································································ 145
Enabling ND proxy ············································································································································· 148
Configuring a customer-side port ······························································································································· 150
Configuring path MTU discovery ······························································································································· 150
Configuring the interface MTU ·························································································································· 150
Basic IPv6 configuration example ······························································································································ 156
Network requirements ········································································································································· 156
Configuration procedure ···································································································································· 156
Verifying the configuration ································································································································· 157
Symptom ······························································································································································· 160
Solution ································································································································································· 160
DHCPv6 overview ··················································································································································· 161
Address/prefix lease renewal ···································································································································· 162
Stateless DHCPv6 ························································································································································· 163
Protocols and standards ·············································································································································· 163
Configuring the DHCPv6 server ····························································································································· 164
Overview ······································································································································································· 164
IPv6 address assignment ···································································································································· 164
IPv6 prefix assignment ········································································································································ 164
Concepts······························································································································································· 165
DHCPv6 address pool ········································································································································ 166
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