IP Router Configuration Command Reference
214 Router Configuration Guide
no redirects
Context config>router>if>ipv6>icmp6
Description This command configures the rate for ICMPv6 redirect messages. When configured, ICMPv6 redirects 
are generated when routes are not optimal on the router and another router on the same subnetwork has 
a better route to alert that node that a better route is available. 
The no form of the command disables ICMPv6 redirects.
Default 100 10 (when IPv6 is enabled on the interface)
Parameters number — Limits the number of redirects issued per the time frame specified in seconds 
parameter. 
Values 10 to 1000 
seconds — Determines the time frame, in seconds, that is used to limit the number of redirects 
issued per time frame.
Values 1 to 60
time-exceeded
Syntax time-exceeded [number seconds]
no time-exceeded
Context config>router>if>ipv6>icmp6
Description This command configures rate for ICMPv6 time-exceeded messages.
Parameters number — Limits the number of time-exceeded messages issued per the time frame specified in 
seconds parameter. 
Values 10 to 1000 
seconds — Determines the time frame, in seconds, that is used to limit the number of time-
exceeded messages issued per time frame.
Values 1 to 60
unreachables
Syntax unreachables [number seconds]
no unreachables
Context config>router>if>ipv6>icmp6
Description This command configures the rate for ICMPv6 unreachable messages. When enabled, ICMPv6 host 
and network unreachable messages are generated by this interface.