Map hostnames to IP addresses

It is possible to define static mappings of hostnames to addresses on a Cisco name resolution device. This usually happens in environments without a DNS server.

The mappings can be defined using the global configuration command ip host HOSTNAME IP_ADDRESS:

Floor1 (config) #ip host HQ_SERVER

In the above, we have defined the IP address for the host name HQ_SERVER. To display hostname to address mappings, the display hosts command is used:

Show Floor1 # hosts
Default domain is not set
The name / address lookup uses the domain service

Name servers are

Codes: UN - unknown, EX - expired, OK - OK, ?? - expand
temporary - temporary, permanent - permanent
NA - Not applicable None - Not defined

Hostport Flags Age Type Address (s)
HQ_SERVER None (perm, OK) 0 IP
We can ping the hostname server to see if the hostnames are being resolved:

Floor1 # ping HQ_SERVER

Write the escape sequence to cancel.
Sending 5 100-byte ICMP echoes to, timeout 2 seconds:

The success rate is 100 percent (5/5), circulation min / avg / max = 0/0/1 ms
You can see that HQ_SERVER has responded to the ping request, which means the name resolution was successful.
Map hostnames to IP addresses Map hostnames to IP addresses Reviewed by Mandik on December 29, 2018 Rating: 5

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