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Display and maintenance commands for FIB table ········································································ 118
Configuring IRDP ········································································· 119
About IRDP ·························································································································· 119
IRDP operation ··············································································································· 119
Protocols and standards ··································································································· 119
IRDP tasks at a glance ············································································································ 119
Restrictions and guidelines: IRDP configuration ············································································ 119
Enabling IRDP ······················································································································ 120
Specifying the preference of advertised IP addresses ···································································· 120
Setting the lifetime of advertised IP addresses ············································································· 120
Setting the advertising intervals ································································································· 121
Specifying the multicast address as the destination address for RAs ················································· 121
Specifying a proxy-advertised IP address ···················································································· 122
IRDP configuration examples ··································································································· 122
Example: Configuring IRDP ······························································································· 122
Optimizing IP performance ····························································· 125
IP performance optimization tasks at a glance ·············································································· 125
Enabling an interface to forward directed broadcasts destined for the directly connected network ··········· 125
About forwarding broadcasts destined for the directly connected network ···································· 125
Procedure ······················································································································ 126
Example: Enabling an interface to forward directed broadcasts destined for the directly connected network
··································································································································· 126
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Setting the MTU of IPv4 packets sent over an interface ·································································· 127
Enabling sending ICMP error messages ····················································································· 127
About sending ICMP error messages··················································································· 127
Enabling sending ICMP redirect messages ··········································································· 127
Enabling sending ICMP time exceeded messages ·································································· 128
Enable sending ICMP destination unreachable messages ························································ 128
Configuring rate limit for ICMP error messages············································································· 129
Disabling forwarding ICMP fragments ························································································· 130
Specifying the source address for ICMP packets ·········································································· 130
Setting TCP MSS for an interface ······························································································ 130
Configuring TCP path MTU discovery ························································································· 131
Enabling SYN Cookie ············································································································· 132
Setting the TCP buffer size ······································································································ 132
Setting TCP timers ················································································································· 132
Display and maintenance commands for IP performance optimization ··············································· 133
Configuring UDP helper ································································· 134
About UDP helper ·················································································································· 134
Configuring UDP helper to convert broadcast to unicast ································································· 134
Configuring UDP helper to convert broadcast to multicast ······························································· 135
Display and maintenance commands for UDP helper····································································· 135
UDP helper configuration examples ··························································································· 136
Example: Configuring UDP helper to convert broadcast to unicast ············································· 136
Example: Configuring UDP helper to convert broadcast to multicast ··········································· 137
Configuring basic IPv6 settings ······················································· 139
About IPv6 ··························································································································· 139
IPv6 features ·················································································································· 139
IPv6 addresses ··············································································································· 140
IPv6 path MTU discovery ·································································································· 142
IPv6 transition technologies ······························································································· 143
Protocols and standards ··································································································· 143
IPv6 basics tasks at a glance ···································································································· 143
Configuring an IPv6 global unicast address ················································································· 144
About IPv6 global unicast address ······················································································ 144
Generating an EUI-64 IPv6 address ···················································································· 144
Manually assigning an IPv6 global unicast address ································································· 145
Stateless address autoconfiguration ···················································································· 145
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