IPv6 Pain Experiment

Tue Oct 8 16:48:33 UTC 2019

> Owen DeLong wrote :
> I’m not sure how giving them DNS names makes them less resilient to DNS failures.

How do you resolve the IP address of the PBX ? I hard-code (in the master config).

The PBX does not have a DNS name. I want my support staff to know its IP on the top of their head.
DNS failures do not happen often, but they do happen. Fat fingers change or delete the entry, the zone gets corrupted or partially corrupted, that kind of stuff.
There are things that redundant hardware and network will not solve. If the PBX address becomes unresolvable, the SIP registrations will timeout and I'm going to lose phones.
Granted, it would not take that much time to troubleshoot, but just the possibility, not matter how remote, that it could happen makes it a non-option.
If DHCP fails, I have a 169.254 secondary address. It may not be elegant, but it is resilient.

Michel.

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