H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 520)

55-10
[AC B] dns server 2.1.1.2
4) Configuration verification
# Execute the ping host.com command on AC B to verify that the host can be pinged after the host’s IP
address 3.1.1.1 is resolved.
[AC B] ping host.com
Trying DNS resolve, press CTRL_C to break
Trying DNS server (2.1.1.2)
PING host.com (3.1.1.1):
56 data bytes, press CTRL_C to break
Reply from 3.1.1.1: bytes=56 Sequence=1 ttl=126 time=3 ms
Reply from 3.1.1.1: bytes=56 Sequence=2 ttl=126 time=1 ms
Reply from 3.1.1.1: bytes=56 Sequence=3 ttl=126 time=1 ms
Reply from 3.1.1.1: bytes=56 Sequence=4 ttl=126 time=1 ms
Reply from 3.1.1.1: bytes=56 Sequence=5 ttl=126 time=1 ms
--- host.com ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 1/1/3 ms
Troubleshooting DNS Configuration
Symptom
After enabling the dynamic domain name resolution, the user cannot get the correct IP address.
Solution
z
Use the display dns dynamic-host command to verify that the specified domain name is in the
cache.
z
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.
z
If the specified domain name is in the cache, but the IP address is incorrect, check that the DNS
client has the correct IP address of the DNS server.
z
Verify the mapping between the domain name and IP address is correct on the DNS server.