Troubleshooting ipv4 dns configuration, Symptom, Solution – H3C Technologies H3C S12500-X Series Switches User Manual
Page 102: Troubleshooting ipv6 dns configuration, Configuring a dhcp client id for an interface
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Troubleshooting IPv4 DNS configuration
Symptom
After enabling dynamic domain name resolution, the user cannot get the correct IP address.
Solution
1.
Use the display dns host ip command to verify that the specified domain name is in the cache.
2.
If the specified domain name does not exist, check that the DNS client can communicate with the
DNS server.
3.
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.
4.
Verify that the mapping between the domain name and IP address is correct on the DNS server.
Troubleshooting IPv6 DNS configuration
Symptom
After enabling dynamic domain name resolution, the user cannot get the correct IPv6 address.
Solution
1.
Use the display dns host ipv6 command to verify that the specified domain name is in the cache.
2.
If the specified domain name does not exist, check that dynamic domain name resolution is
enabled, and that the DNS client can communicate with the DNS server.
3.
If the specified domain name is in the cache, but the IPv6 address is incorrect, check that the DNS
client has the correct IPv6 address of the DNS server.
4.
Verify that the mapping between the domain name and IPv6 address is correct on the DNS server.