Configuring Dynamic Domain Name Resolution - HP 5920 Series Configuration Manual

Follow these guidelines when you configure static domain name resolution:
• For the public network or a VPN, each host name maps to only one IPv6 address. The last
configuration for a host name takes effect.
You can configure host name-to-IPv6 address mappings for the public network and up to 1024
•
VPNs, and configure a maximum of 1024 host name-to-IPv6 address mappings for the public
network or each VPN.
To configure static domain name resolution:
Step
1. Enter system view.
2. Configure a mapping between
a host name and an IPv6
address.

Configuring dynamic domain name resolution

To send DNS queries to a correct server for resolution, you must enable dynamic domain name resolution
and configure DNS servers. A DNS server manually configured takes precedence over the one
dynamically obtained through DHCP, and a DNS server configured earlier takes precedence. A name
query is first sent to the DNS server that has the highest priority. If no reply is received, it is sent to the
DNS server that has the second highest priority, and thus in turn.
In addition, you can configure a DNS suffix that the system automatically adds to the provided domain
name for resolution. A DNS suffix manually configured takes precedence over the one dynamically
obtained through DHCP, and a DNS suffix configured earlier takes precedence. The DNS resolver first
uses the suffix that has the highest priority. If the name resolution fails, the DNS resolver uses the suffix
that has the second highest priority, and thus in turn.
Configuration guidelines
Follow these guidelines when you configure dynamic domain name resolution:
You can specify DNS server IPv4 addresses for the public network and up to 1024 VPNs, and
•
specify a maximum of six DNS server IPv4 addresses for the public network or each VPN.
You can specify DNS server IPv6 addresses for the public network and up to 1024 VPNs, and
•
specify a maximum of six DNS server IPv6 addresses for the public network or each VPN.
• An IPv6 name query is first sent to the IPv6 DNS servers. If no reply is received, it is sent to the IPv4
DNS servers.
You can specify domain name suffixes for the public network and up to 1024 VPNs, and specify
•
a maximum of 16 domain name suffixes for the public network or each VPN.
Configuration procedure
To configure dynamic domain name resolution:
Step
1. Enter system view.
Command
system-view
ipv6 host host-name ipv6-address
[ vpn-instance
vpn-instance-name ]
Command
system-view
78
Remarks
N/A
By default, no mapping between
a host name and an IPv6 address
is configured.
Remarks
N/A