Command Reference Guide

3Com Router 5000 Family and Router 6000 Family display dns dynamic host ● 127
Command Reference
display dns dynamic host
Purpose Use the display dns dynamic-host command to view the current contents in
the domain name cache of the DNS client.
Syntax display dns dynamic-host
Parameters None
Example Display the current contents in the domain name cache of the DNS client.
[Router]display dns dynamic-host
No Host --> Ipaddress TTL Alias
1 www.sohu.com 91.1.1.1 3521
2 www.sina.com.cn 87.1.1.1 3000
No Host --> Ipaddress TTL Alias
1 www.163.com 191.1.1.1 3561
2 www.263.com 187.1.1.1 3300
The first part of the output is the result of Class A query, or the result queried by host;
the second part of the output is the result of PTR class query, or the result queried by
IP address.
View This command can be used in the following views:
■ Any view
Description The DNS client retains the result of each successful domain name resolution in its
cache. If it receives the same resolving request later, it first looks up the cache for a
match. And if no match is found, it sends a domain name resolving request to the
DNS server. You can use this command to view the current contents in the buffer.