User guide

8-16 B
LACK
D
IAMOND
U
SER
G
UIDE
IP U
NICAST
R
OUTING
R
OUTING
C
ONFIGURATION
E
XAMPLE
Figure 8-2 illustrates a switch that has three VLANs defined as follows:
• Finance
— Protocol-sensitive VLAN using the IP protocol
— All ports on slots 1 and 3 have been assigned
— IP address 192.207.35.1
config irdp <mininterval> <maxinterval>
<lifetime> <preference>
Configures the router advertisement message
timers, using seconds. Specify:
■
mininterval
— The minimum amount of
time between router advertisements. The
default setting is 450 seconds.
■
maxinterval
— The maximum time
between router advertisements. The default
setting is 600 seconds.
■
lifetime
— The default setting is 1,800
seconds.
■
preference —
The preference level of the
router. An IRDP client always uses the
router with the highest preference level.
Change this setting to encourage or
discourage the use of this router. The
default setting is 0.
unconfig icmp Resets all ICMP settings to the default values.
unconfig irdp Resets all router advertisement settings to the
default values.
disable icmp redirects {vlan <name> | all} Disables the generation of ICMP redirects on
one or more VLANs.
disable icmp unreachables {vlan <name> | all} Disables the generation of ICMP unreachable
messages on one or more VLANs.
disable icmp useredirects Disables the changing of routing table
information when an ICMP redirect message is
received.
disable irdp {vlan <name> | all} Disables the generation of router advertisement
messages on one or more VLANs.
Table 8-4:
ICMP Configuration Commands (continued)
Command Description