ix
Configuring DHCPv6 binding auto backup ···································································································· 273
Advertising subnets assigned to clients ········································································································· 274
Applying a DHCPv6 address pool to a VPN instance ···················································································· 274
Enabling DHCPv6 logging on the DHCPv6 server ························································································ 275
Displaying and maintaining the DHCPv6 server ···························································································· 275
DHCPv6 server configuration examples ········································································································ 276
Dynamic IPv6 prefix assignment configuration example········································································ 276
Dynamic IPv6 address assignment configuration example ···································································· 278
Configuring the DHCPv6 relay agent ·························································· 281
Overview ························································································································································ 281
DHCPv6 relay agent configuration task list ···································································································· 282
Enabling the DHCPv6 relay agent on an interface ························································································ 282
Specifying DHCPv6 servers on the relay agent ····························································································· 282
Setting the DSCP value for DHCPv6 packets sent by the DHCPv6 relay agent ··········································· 283
Specifying a padding mode for the Interface-ID option ·················································································· 283
Configuring a DHCPv6 relay address pool ···································································································· 284
Specifying a gateway address for DHCPv6 clients ························································································ 284
Displaying and maintaining the DHCPv6 relay agent ···················································································· 285
DHCPv6 relay agent configuration example ·································································································· 285
Network requirements ···························································································································· 285
Configuration procedure ························································································································· 286
Verifying the configuration ······················································································································ 286
Configuring the DHCPv6 client ··································································· 288
Overview ························································································································································ 288
Configuration restrictions and guidelines ······································································································· 288
DHCPv6 client configuration task list ············································································································· 288
Configuring IPv6 address acquisition ············································································································· 288
Configuring IPv6 prefix acquisition ················································································································· 289
Configuring IPv6 address and prefix acquisition ···························································································· 289
Configuring stateless DHCPv6 ······················································································································ 289
Configuring the DHCPv6 client DUID ············································································································ 290
Setting the DSCP value for DHCPv6 packets sent by the DHCPv6 client ····················································· 290
Displaying and maintaining DHCPv6 client ···································································································· 291
DHCPv6 client configuration examples ·········································································································· 291
IPv6 address acquisition configuration example ···················································································· 291
IPv6 prefix acquisition configuration example ························································································ 293
IPv6 address and prefix acquisition configuration example ··································································· 294
Stateless DHCPv6 configuration example ····························································································· 296
Configuring DHCPv6 snooping ··································································· 299
Overview ························································································································································ 299
Application of trusted and untrusted ports ······························································································ 299
Command and hardware compatibility ··········································································································· 300
DHCPv6 snooping configuration task list ······································································································· 300
Configuring basic DHCPv6 snooping ············································································································· 300
Configuring Option 18 and Option 37 ············································································································ 301
Configuring DHCPv6 snooping entry auto backup ························································································ 301
Setting the maximum number of DHCPv6 snooping entries ·········································································· 302
Enabling DHCPv6-REQUEST check ············································································································· 302
Configuring a DHCPv6 packet blocking port ·································································································· 303
Enabling DHCPv6 snooping logging ·············································································································· 303
Displaying and maintaining DHCPv6 snooping ····························································································· 304
DHCPv6 snooping configuration example ····································································································· 304
Network requirements ···························································································································· 304
Configuration procedure ························································································································· 305
Verifying the configuration ······················································································································ 305
Configuring IPv6 fast forwarding ································································· 306
Overview ························································································································································ 306
Command and hardware compatibility ··········································································································· 306
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