36 DNS client
You can configure a default domain name, which defines the domain to use when
performing a lookup on an unqualified host name. You can also configure a
domain-name list. If there is no domain list, the default domain name is used. If
there is a domain-name list, the default domain name is not used. An entry in
domain-name list can be configured statically (by you) or learned dynamically by
the DHCP client. As with DNS server addresses, because the switch has no
DHCPv6 client, IPv6 entries cannot be learned dynamically.
Static host name-to-IPv4 or -IPv6 address mappings can be added and removed
from the local cache. When a conflict exists between a static and dynamic
mapping, the static mapping takes precedence.
The DNS client supports host names with single spaces embedded within the
name, but consecutive spaces are not supported. Underscores are accepted in host
names as well.
Defaults The DNS client is enabled by default. No default IP host mappings, default
domain names, or name servers are configured.
CLI show
commands
You can use the following
show
command in User EXEC mode to view
information about the features of DNS:
For more information on the DNS commands, see the CN1610 Network Switch
CLI Command Reference.
Configuration
example
The following commands configure a default domain name to complete lookup
requests with unspecified domain names. It also configures two name servers:
Command Description
show hosts
Displays the default domain name, a list of name
server hosts, and the static and the cached list of
host names and addresses.
(CN1610) #config
(CN1610) (Config)#ip domain name xyzcorp.com
(CN1610) (Config)#ip name server 10.23.9.123 9.26.71.2
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