We have a Polycom VVX 410 deployed w/ UCS 5.4 and we're seeing an odd behvaiour where the phone suddenly changes IP from our internal space (10.x.x.x) to 172.24.x.x. We do not serve that space internally, and I have DHCP snooping enabled and there are no other DHCP servers on the network. This seems to happen exclusively when the PC connected to the switch port goes to sleep.
I briefly tested this but I am unable to reproduce.
Please work with your Polycom reseller on raising a support ticket with Polycom directly and provide as much details as possible.
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Polycom Global Services
Can you list the details of the PC and a few other things?
* Make and model number of PC
* Network card details
* Upstream switch details
* How is the phone powered?
* Does it follow this specific PC or does it affect multiple models?
Just wondering if we have a similar setup here within Polycom we can test on.