Configuring ND snooping ·································································································································· 109

Configuring path MTU discovery ······························································································································· 110

Configuring a static path MTU for a specific IPv6 address ············································································ 110

Configuring the aging time for dynamic path MTUs ······················································································· 110

Configuring IPv6 TCP properties ································································································································ 111

Configuring IPv6 FIB forwarding ································································································································ 111

Configuring ICMPv6 packet sending ························································································································· 112

Configuring the maximum ICMPv6 error packets sent in an interval ···························································· 112

Enabling replying to multicast echo requests ··································································································· 112

Enabling sending ICMPv6 time exceeded messages ······················································································ 113

Enabling sending ICMPv6 destination unreachable messages ······································································ 113

Displaying and maintaining IPv6 basics configuration ···························································································· 114

IPv6 basics configuration example ···························································································································· 115

Network requirements ········································································································································· 115

Configuration procedure ···································································································································· 115

Verifying the configuration ································································································································· 117

Troubleshooting IPv6 basics configuration ················································································································ 120

Symptom ······························································································································································· 120

Solution ································································································································································· 120

IP routing basics ······················································································································································ 121

Routing table ································································································································································· 121

Route preference ·························································································································································· 122

Route backup ································································································································································ 122

Displaying and maintaining a routing table ············································································································· 122

Configuring static routing ······································································································································· 124

Configuring a static route ············································································································································ 124

Displaying and maintaining static routes ·················································································································· 125

Basic static route configuration example ··················································································································· 125

Configuring IPv6 static routing ······························································································································· 128

Overview ······································································································································································· 128

Displaying and maintaining IPv6 static routes ·········································································································· 128

IPv6 static routing configuration example ················································································································· 129

Configuring RIP ······················································································································································· 131

RIP route entries ··················································································································································· 131

RIP timers ······························································································································································ 131

Routing loop prevention ······································································································································ 131

RIP operation ························································································································································ 132

RIP versions ·························································································································································· 132

Protocols and standards ····································································································································· 132

RIP configuration task list ············································································································································· 133

Configuring basic RIP ·················································································································································· 133

Enabling RIP ························································································································································· 133

Configuring the interface behavior ··················································································································· 134

Configuring a RIP version ··································································································································· 134

Configuring RIP route control ······································································································································ 135

Configuring an additional routing metric ········································································································· 135

Configuring RIPv2 route summarization············································································································ 136

Disabling host route reception ··························································································································· 137

Advertising a default route ································································································································· 137

Configuring inbound/outbound route filtering ································································································· 138