Using Juniper EX3400 switches with Mist Wired Assurance. All of a sudden some of them stopped communicating with the cloud. It looks like they are not resolving the DNS names.
Name servers are setup in the switch:
set groups top system name-server 208.67.222.222
set groups top system name-server 8.8.8.8
This command fails.
show host google.com
Below passes
show host server 8.8.8.8 google.com
Doing a TCPDump shows switch is trying to use 127.0.0.1 instead of the configured name server:
Reverse lookup for 10.26.193.18 failed (check DNS reachability).
Other reverse lookup failures will not be reported.
Use <no-resolve> to avoid reverse lookups on IP addresses.
17:58:53.074864 Out IP truncated-ip - 21 bytes missing! 10.26.193.18.60646 > 127.0.0.1.domain: 8585+[|domain]
Running 20.4R3.8. Any ideas will be greatly appreciated.
Thank you
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MOHAMMAD ALI
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