3com 4210 PWR 9-Port 3CR17341-91-ME User Manual

C

HAPTER

 48: DNS C

ONFIGURATION

    Reply from 3.1.1.1: bytes=56 Sequence=2 ttl=255 time=1 ms

 

    Reply from 3.1.1.1: bytes=56 Sequence=3 ttl=255 time=1 ms

 

    Reply from 3.1.1.1: bytes=56 Sequence=4 ttl=255 time=1 ms

 

    Reply from 3.1.1.1: bytes=56 Sequence=5 ttl=255 time=1 ms

 

 
  --- 3.1.1.1 ping statistics ---

 

    5 packet(s) transmitted

 

    5 packet(s) received

 

    0.00% packet loss

 

    round-trip min/avg/max = 1/1/3 ms

 

  --- host.com ping statistics ---

 

    5 packet(s) transmitted

 

    0 packet(s) received

 

    100.00% packet loss 

After enabling the dynamic domain name resolution, the user cannot get the 
correct IP address.

■

Use the display dns dynamic-host command to check that the specified 
domain name is in the cache.

■

If there is no defined domain name, check that dynamic domain name 
resolution is enabled and the DNS client can communicate with the DNS server.

■

If the specified domain name exists in the cache but the IP address is incorrect, 
check that the DNS client has the correct IP address of the DNS server.

■

Check that the mapping between the domain name and IP address is correct 
on the DNS server.