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AR router not advertise ipv6 Getaway to PC

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Hello everyone,

I believe you can learn how to deal with AR router not advertise ipv6 getaway to PC from my case.

Fault Type

Service >>IP Service >>IPv6

Issue Description

Customer configuration dhcpv6 in AR160 router.

After test found PC can get ip and dns but can't get gateway


AR161FG-L V200R007C00SPCb00

Alarm Information

PC NIC detail as follow:


Handling Process

Check the current configuration of dhcpv6

dhcpv6 pool tv

 address prefix 2405:6400:46:2000::/51

 dns-server 2405:6400::991

 dns-server 2405:6400:1000::5811

interface GigabitEthernet0/0/0

 undo portswitch

 ipv6 enable

 ipv6 address 2405:6400:46:2002::1/51

 dhcpv6 server tv

Found the comfiguration miss with "undo ipv6 nd ra halt"

Usage Scenario

When a device is connected to a host, it periodically sends RA packets to the host. An RA packet carries the IPv6 address prefix and flag information of stateful autoconfiguration. You can run the undo ipv6 nd ra halt command to enable the device to send RA packets.

When a device is connected to another device, that is, there is no host on the network, sending RA packets is not required. The default configuration is recommended.

Root Cause

Configuration miss with "undo ipv6 nd ra halt"


Add bellow command under interface:

interface GigabitEthernet0/0/0

undo portswitch

ipv6 enable

ipv6 address 2405:6400:46:2002::1/51

dhcpv6 server tv

undo ipv6 nd ra halt


For more detail about this command please reference: nd ra halt&docid=EDOC1000085855

This is what I want to share with you, thank you!

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