vii
How MLD snooping works ································································································································· 289
Protocols and standards ····································································································································· 290
Recommended configuration procedure···················································································································· 290
Enabling MLD snooping globally ······················································································································ 291
Configuring MLD snooping in a VLAN ············································································································· 292
Configuring MLD snooping port functions ········································································································ 293
Displaying MLD snooping multicast forwarding entries ·················································································· 295
MLD snooping configuration example ······················································································································· 296
Configuration procedure ···································································································································· 296
Verifying the configuration ································································································································· 299
Configuring IPv4 and IPv6 routing ························································································································ 301
Overview ······································································································································································· 301
Routing table ························································································································································ 301
Static route ··························································································································································· 301
Default route ························································································································································· 302
Displaying the IPv4 active route table ······················································································································· 302
Creating an IPv4 static route ······································································································································· 303
Displaying the IPv6 active route table ······················································································································· 304
Creating an IPv6 static route ······································································································································· 305
IPv4 static route configuration example ····················································································································· 306
IPv6 static route configuration example ····················································································································· 310
Network requirements ········································································································································· 310
Configuration considerations ····························································································································· 310
Configuration procedure ···································································································································· 310
Verifying the configuration ································································································································· 313
Configuration guidelines ············································································································································· 314
IPv6 management ···················································································································································· 315
Enabling IPv6 service ··················································································································································· 315
DHCP overview ······················································································································································· 316
DHCP address allocation ············································································································································ 316
Allocation mechanisms ······································································································································· 316
Dynamic IP address allocation process············································································································· 317
IP address lease extension·································································································································· 317
DHCP message format ················································································································································· 318
DHCP options ······························································································································································· 319
Common DHCP options ······································································································································ 319
Relay agent option (Option 82) ························································································································· 319
Protocols and standards ·············································································································································· 320
Configuring DHCP relay agent ······························································································································ 321
Overview ······································································································································································· 321
Operation ····························································································································································· 321
Recommended configuration procedure···················································································································· 322
Enabling DHCP and configuring advanced parameters for the DHCP relay agent ············································· 323
Creating a DHCP server group ·································································································································· 324
Enabling the DHCP relay agent on an interface ······································································································ 325
Configuring and displaying clients' IP-to-MAC bindings ························································································· 326
DHCP relay agent configuration example ················································································································· 327
Network requirements ········································································································································· 327
Configuring Switch A ·········································································································································· 327
Configuring DHCP snooping ·································································································································· 330
Overview ······································································································································································· 330
Application of trusted ports ································································································································ 330
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