Configuration Guide Configuring IPv6
Disable RA suppression on an interface.
Ruijie(config-if-GigabitEthernet 0/0)# no ipv6 nd suppress-ra
Run the show run command to check whether the configuration takes effect.
interface GigabitEthernet 0/0
ipv6 enable
no ipv6 nd suppress-ra
!
 Configuring the Maximum Number of Unresolved ND Entries
Set the maximum number of unresolved ND entries to 200.
Ruijie(config)# ipv6 nd unresolved 200
Run the show run command to check whether the configuration takes effect.
Ruijie#show run
ipv6 nd unresolved 200
!
 Configuring the Maximum Number of ND Entries Learned on an Interface
Set the maximum number of ND entries learned on an interface to 100.
Ruijie(config-if-GigabitEthernet 0/1)# ipv6 nd cache interface-limit 100
Run the show run command to check whether the configuration takes effect.
Ruijie#show run
!
interface GigabitEthernet 0/1
ipv6 nd cache interface-limit 100
!
3.4.3 Enabling PMTUD
Configuration Effect
The IPv6 MTU value of the interface should be adjusted according to the actual networking environment, so as to prevent
packets being discarded.
Notes
The configured range of IPv6 MTU value is limited by the interface MTU. Generally speaking, the rang is from 1280 to
1500.
Configuration Steps
 Configuring the IPv6 MTU of an Interface