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qanet02nue.qa.suse.de and qanet03nue.qa.suse.de can not be reached over neither IPv4 nor IPv6

Observation¶

$ ping qanet03nue.qa.suse.de
PING qanet03nue.qa.suse.de(2620:113:80c0:80a0:10:162:0:63 (2620:113:80c0:80a0:10:162:0:63)) 56 data bytes
From 2620:113:80c0:8120::5 (2620:113:80c0:8120::5) icmp_seq=1 Destination unreachable: Address unreachable
From 2620:113:80c0:8120::5 (2620:113:80c0:8120::5) icmp_seq=2 Destination unreachable: Address unreachable
^C
--- qanet03nue.qa.suse.de ping statistics ---
2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 1001ms

okurz@linux-28d7:~ 1 (master) $ ping -4 qanet03nue.qa.suse.de
PING  (10.162.0.63) 56(84) bytes of data.
64 bytes from qanet03nue.qa.suse.de (10.162.0.63): icmp_seq=1 ttl=62 time=2625 ms
64 bytes from qanet03nue.qa.suse.de (10.162.0.63): icmp_seq=2 ttl=62 time=1613 ms

ssh access works, http not.

So two problems:

1. IPv6 DNS resolution broken
2. web interface not accessible

Acceptance criteria¶

• AC1: Only resolvable DNS entries exist
• AC2: web interface http://qanet03nue.qa.suse.de accessible as well as http://qanet02nue.qa.suse.de (either HTTP or HTTPS)

Suggestions¶

• Check for firmware upgrades for these switches
• Optional: Apply the same solution to other QA switches to prevent further problems there
• Check dhcpv6 setup on qanet to understand which v6 address these switches should have
• If IPv6 is not feasible to use at all remove AAAA records

Workaround¶

If the web interface is not available a manual power cycle can help