4000 Router Series Layer 3 - IP Services Command Reference

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For the public network or a VPN, each host name maps to only one IPv6 address. If you use the command

multiple times, the most recent configuration takes effect.

Examples

# Map IPv6 address 2001::1 to host name aaa on the public network.

<Sysname> system-view

[Sysname] ipv6 host aaa 2001::1

Related commands

ip host

reset dns host

Use reset dns host to clear information about the dynamic DNS cache.

Syntax

reset dns host [ ip | ipv6 ] [ vpn-instance vpn-instance-name ]

Views

User view

Predefined user roles

network-admin

Parameters

ip: Specifies type A queries. A type A query resolves a domain name to the mapped IPv4 address.

ipv6: Specifies type AAAA queries. A type AAAA query resolves a domain name to the mapped IPv6

address.

vpn-instance vpn-instance-name: Specifies the name of an MPLS L3VPN instance, a case-sensitive string

of 1 to 31 characters. If you do not specify any VPN, the command clears the domain name-to-IPv6

address mapping on the public network.

Usage guidelines

Using the reset dns host command without the ip and ipv6 keywords clears dynamic DNS cache

information about all query types.

Examples

# Clear dynamic DNS cache information about all query types on the public network.

<Sysname> reset dns host

Related commands

display dns host