v
Configuring TCP MSS for an interface ······················································································································ 108
Configuring TCP path MTU discovery ······················································································································· 109
Enabling TCP SYN Cookie·········································································································································· 110
Configuring the TCP buffer size·································································································································· 110
Configuring TCP timers
················································································································································ 111
Enabling sending ICMP error packets ······················································································································· 111
Disabling forwarding ICMP fragments ······················································································································ 112
Displaying and maintaining IP performance optimization ······················································································ 113
Configuring UDP helper·········································································································································· 114
Overview······································································································································································· 114
Configuration guidelines ············································································································································· 114
Configuration procedure ············································································································································· 114
Displaying and maintaining UDP helper ··················································································································· 115
UDP helper configuration example ···························································································································· 115
Network requirements········································································································································· 115
Configuration procedure ···································································································································· 115
Verifying the configuration ································································································································· 116
Configuring basic IPv6 settings ······························································································································ 117
Overview······································································································································································· 117
IPv6 features························································································································································· 117
IPv6 addresses ····················································································································································· 118
IPv6 ND protocol ················································································································································· 121
IPv6 path MTU discovery···································································································································· 122
IPv6 transition technologies········································································································································· 123
Dual stack ····························································································································································· 123
Tunneling ······························································································································································ 123
Protocols and standards ·············································································································································· 123
IPv6 basics configuration task list
······························································································································· 124
Assigning IPv6 addresses to interfaces
······················································································································ 124
Configuring an IPv6 global unicast address ···································································································· 125
Configuring an IPv6 link-local address ············································································································· 125
Configuring an IPv6 anycast address ··············································································································· 126
Configuring IPv6 ND ··················································································································································· 127
Configuring a static neighbor entry ·················································································································· 127
Setting the maximum number of dynamic neighbor entries············································································ 127
Setting the aging timer for ND entries in stale state ························································································ 128
Minimizing link-local ND entries························································································································ 128
Setting the hop limit ············································································································································ 128
Configuring parameters for RA messages ········································································································ 129
Configuring the maximum number of attempts to send an NS message for DAD ······································· 131
Configuring path MTU discovery ······························································································································· 131
Configuring the interface MTU ·························································································································· 131
Configuring a static path MTU for a specific IPv6 address ············································································ 132
Configuring the aging time for dynamic path MTUs ······················································································· 132
Controlling sending ICMPv6 packets························································································································· 132
Enabling replying to multicast echo requests ··································································································· 133
Enabling sending ICMPv6 destination unreachable messages ······································································ 133
Enabling sending ICMPv6 time exceeded messages ······················································································ 133
Enabling sending ICMPv6 redirect messages ·································································································· 134
Displaying and maintaining IPv6 basics ··················································································································· 134
IPv6 basics configuration example ···························································································································· 136
Network requirements········································································································································· 136
Configuration procedure ···································································································································· 136