Layer 3 Routing Commands 1532
Command Mode
Interface Configuration (physical, port-channel)
User Guidelines
RA Guard drops all incoming IPv6 router advertisement and router redirect
messages.
RA Guard may be configured on L2 or L3 interfaces.
Command History
Introduced in version 6.2.0.1 firmware.
Example
The following example configures an unnamed RA Guard policy to drop all
RA advertisements and router redirect messages on IPv6 routing enabled
interface Gi1/0/1 (VLAN 10).
console(config)#vlan 10
console(config-vlan10)#exit
console(config)#interface vlan 10
console(config-if-vlan10)#ipv6 enable
console(config-if-vlan10)#exit
console(config)#ipv6 unicast-routing
console(config)#interface gi1/0/1
console(config-if-Gi1/0/1)#switchport access vlan 10
console(config-if-Gi1/0/1)#exit
console(config)#interface gi1/0/1
console(config-if-Gi1/0/1)#ipv6 nd raguard attach-policy
ipv6 nd ra-interval
Use the ipv6 nd ra-interval command in Interface Configuration mode to set
the transmission interval between router advertisements.
Syntax
ipv6 nd ra-interval maximum minimum
no ipv6 nd ra-interval
• maximum — The maximum interval duration (Range: 4–1800 seconds).
• minimum — The minimum interval duration (Range: 3 – (0.75 *
maximum) seconds).
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