Administrator Guide

Name server, Domain name, and Domain list are VRF specific. The maximum number of Name servers and Domain lists per VRF is six.
Enabling Dynamic Resolution of Host Names
By default, dynamic resolution of host names (DNS) is disabled.
To enable DNS, use the following commands.
• Enable dynamic resolution of host names.
CONFIGURATION mode
ip domain-lookup
• Specify up to six name servers.
CONFIGURATION mode
ip name-server ip-address [ip-address2 ... ip-address6]
The order you entered the servers determines the order of their use.
To view current bindings, use the show hosts command.
DellEMC>show host
Default domain is force10networks.com
Name/address lookup uses domain service
Name servers are not set
Host Flags TTL Type Address
-------- ----- ---- ---- -------
ks (perm, OK) - IP 2.2.2.2
patch1 (perm, OK) - IP 192.68.69.2
tomm-3 (perm, OK) - IP 192.68.99.2
gxr (perm, OK) - IP 192.71.18.2
f00-3 (perm, OK) - IP 192.71.23.1
DellEMC>
To view the current configuration, use the show running-config resolve command.
Specifying the Local System Domain and a List of
Domains
If you enter a partial domain, Dell EMC Networking OS can search different domains to finish or fully qualify that partial domain.
A fully qualified domain name (FQDN) is any name that is terminated with a period/dot. Dell EMC Networking OS searches the host table
first to resolve the partial domain. The host table contains both statically configured and dynamically learnt host and IP addresses. If Dell
EMC Networking OS cannot resolve the domain, it tries the domain name assigned to the local system. If that does not resolve the partial
domain, Dell EMC Networking OS searches the list of domains configured.
To configure a domain name or a list of domain names, use the following commands.
• Enter up to 63 characters to configure one domain name.
CONFIGURATION mode
ip domain-name name
• Enter up to 63 characters to configure names to complete unqualified host names.
CONFIGURATION mode
ip domain-list name
Configure this command up to six times to specify a list of possible domain names. Dell EMC Networking OS searches the domain
names in the order they were configured until a match is found or the list is exhausted.
Configuring DNS with Traceroute
To configure your switch to perform DNS with traceroute, use the following commands.
• Enable dynamic resolution of host names.
CONFIGURATION mode
ip domain-lookup
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IPv4 Routing