Troubleshooting Ipv4 Dns Configuration; Symptom; Solution; Troubleshooting Ipv6 Dns Configuration - HPE FlexNetwork 10500 Series Configuration Manual

<Device> system-view
[Device] ipv6 dns server 2::2
# Configure com as the DNS suffix.
[Device] dns domain com
Verifying the configuration
# Verify that the device can use the dynamic domain name resolution to resolve the domain name
host.com into the IP address 1::1.
[Device] ping ipv6 host
Ping6(56 data bytes) 3::1 --> 1::1, press CTRL_C to break
56 bytes from 1::1, icmp_seq=0 hlim=128 time=1.000 ms
56 bytes from 1::1, icmp_seq=1 hlim=128 time=0.000 ms
56 bytes from 1::1, icmp_seq=2 hlim=128 time=1.000 ms
56 bytes from 1::1, icmp_seq=3 hlim=128 time=1.000 ms
56 bytes from 1::1, icmp_seq=4 hlim=128 time=0.000 ms
--- Ping6 statistics for host ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.000/0.600/1.000/0.490 ms

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.
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