ipv6 nd proxy

This command enables the IPv6 Neighbor Discovery (ND) Proxy feature for a WAN interface. This feature enhances network communication efficiency, by allowing a firewall to respond to Neighbor Solicit messages on behalf of devices within a local area network (LAN). When this feature is configured on a network interface and a prefix is delegated to one of the LAN interfaces, the firewall intercepts Neighbor Solicit messages and promptly replies with Neighbor Advertisement messages for any addresses within the received prefix from Router Advertisement (RA) messages. This capability optimizes network routing and ensures seamless connectivity for devices within the LAN

Syntax

# ipv6 nd proxy

Note

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The firewall hook must be enabled on the respective network interface. This ensures that the firewall can intercept and respond to Neighbor Solicit messages effectively, facilitating smooth communication within the network.

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This command is applicable only to data-router functionality.

Command Mode

Privileged User

Example

This example enables the IPv6 ND Proxy feature on the gigabitethernet 0/0 interface.

(config-data)# interface gigabitethernet 0/0
(conf-if-GE 0/0)# ipv6 nd proxy