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Stateless address autoconfiguration ···················································································· 180
Configuring prefix-specific address autoconfiguration ······························································ 181
Configuring an IPv6 link-local address ························································································ 181
About IPv6 link-local address ····························································································· 181
Restrictions and guidelines ································································································ 182
Configuring automatic generation of an IPv6 link-local address for an interface ····························· 182
Manually assigning an IPv6 link-local address to an interface ··················································· 182
Configuring an IPv6 anycast address ························································································· 182
Configuring path MTU discovery ······························································································· 183
Setting the interface MTU for IPv6 packets ··········································································· 183
Setting a static path MTU for an IPv6 address ······································································· 183
Setting the aging time for dynamic path MTUs ······································································· 184
Controlling sending ICMPv6 messages ······················································································· 184
Configuring the rate limit for ICMPv6 error messages ······························································ 184
Enabling replying to multicast echo requests ········································································· 184
Enabling sending ICMPv6 destination unreachable messages ·················································· 185
Enabling sending ICMPv6 time exceeded messages ······························································ 185
Enabling sending ICMPv6 redirect messages ········································································ 186
Specifying the source address for ICMPv6 packets ································································· 186
Enabling Layer 3 packet statistics counting ·················································································· 187
Enabling IPv6 local fragment reassembly ···················································································· 187
Enabling discarding IPv6 packets that contain extension headers ····················································· 187
Display and maintenance commands for IPv6 basics ····································································· 188
Basic IPv6 settings configuration examples ················································································· 189
Example: Configuring basic IPv6 settings ············································································· 189
Configuring IPv6 neighbor discovery ················································ 194
About IPv6 neighbor discovery ·································································································· 194
ICMPv6 messages used by IPv6 neighbor discovery ······························································ 194
Address resolution ··········································································································· 194
Neighbor reachability detection ·························································································· 195
Duplicate address detection ······························································································· 195
Router/prefix discovery and stateless address autoconfiguration ··············································· 196
Redirection ···················································································································· 196
Protocols and standards ··································································································· 196
IPv6 neighbor discovery tasks at a glance ··················································································· 196
Configuring a static neighbor entry ····························································································· 197
Setting the dynamic neighbor learning limit on an interface ····························································· 198
Setting the aging timer for ND entries in stale state ······································································· 198
Minimizing link-local ND entries ································································································· 199
Setting the hop limit ················································································································ 199
Configuring RA message sending and parameters ········································································ 199
About RA message parameters ·························································································· 199
Restrictions and guidelines ································································································ 200
Enabling the sending of RA messages ················································································· 200
Configuring parameters for RA messages ············································································· 201
Specifying DNS server information in RA messages ······························································· 202
Specifying DNS suffix information in RA messages ································································· 203
Suppressing advertising DNS information in RA messages ······················································ 203
Setting the maximum number of attempts to send an NS message for DAD ······································· 204
Configuring ND snooping in a VLAN ·························································································· 205
About ND snooping in a VLAN ··························································································· 205
Procedure ······················································································································ 206
Configuring ND snooping in a VXLAN ························································································ 207
About ND snooping in a VXLAN ························································································· 207
Procedure ······················································································································ 207
Enabling ND proxy ················································································································· 208
About ND proxy ·············································································································· 208
Enabling common ND proxy ······························································································ 209
Enabling local ND proxy ···································································································· 209
Configuring IPv6 ND direct route advertisement ··········································································· 209
About IPv6 ND direct route advertisement ············································································ 209