Concept Guide

9 Enable verication of the advertised default router preference value. The preference value must be less than or equal to the specied
limit.
POLICY LIST CONFIGURATION mode
router-preference maximum {high | low | medium}
10 Set the router lifetime.
POLICY LIST CONFIGURATION mode
router—lifetime value
The router lifetime range is from 0 to 9,000 seconds.
11 Apply the policy to trusted ports.
POLICY LIST CONFIGURATION mode
trusted-port
12 Set the maximum transmission unit (MTU) value.
POLICY LIST CONFIGURATION mode
mtu value
13 Set the advertised reachability time.
POLICY LIST CONFIGURATION mode
reachable—time value
The reachability time range is from 0 to 3,600,000 milliseconds.
14 Set the advertised retransmission time.
POLICY LIST CONFIGURATION mode
retrans—timer value
The retransmission time range is from 100 to 4,294,967,295 milliseconds.
15 Display the congurations applied on the RA guard policy mode.
POLICY LIST CONFIGURATION mode
show config
Example of the show config Command
DellEMC(conf-ra_guard_policy_list)#show config
!
ipv6 nd ra-guard policy test
device-role router
hop-limit maximum 251
mtu 1350
other-config-flag on
reachable-time 540
retrans-timer 101
router-preference maximum medium
trusted-port
DellEMC(conf-ra_guard_policy_list)#
Conguring IPv6 RA Guard on an Interface
To congure the IPv6 Router Advertisement (RA) guard on an interface, perform the following steps:
1 Congure the terminal to enter the Interface mode.
492
IPv6 Routing