Operation Manual - DNS
H3C S3100 Series Ethernet Switches Chapter 1 DNS Configuration
1-7
Reply from 3.1.1.1: bytes=56 Sequence=4 ttl=125 time=4 ms
Reply from 3.1.1.1: bytes=56 Sequence=5 ttl=125 time=5 ms
--- host.com ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 4/4/5 ms
1.5 Troubleshooting DNS
I. Symptom
After enabling the dynamic domain name resolution, the user cannot get the correct IP
address.
II. Solution
z Use the display dns dynamic-host command to check 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 exists in the cache but the IP address is incorrect,
check that the DNS client has the correct IP address of the DNS server.
z Check that the mapping between the domain name and IP address is correct on
the DNS server.
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