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New Firmware 4.1.5 issue

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Occasional Advisor

Re: New Firmware 4.1.5 issue

Service request opened.  What I have found so far is that when using vlans, dhcp can sometimes fail at the phone due to a malformed option 125 packet coming from the phone.  This applies to 4.1.5 only and a vvx.

 

Will update this post when I have more info and/or a resolution.

Message 11 of 18
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Polycom Employee & Community Manager

Re: New Firmware 4.1.5 issue

Hello,

 

would you mind sharing the SR number so I can keep an eye on the progress?

 

Best Regards

 

Steffen Baier

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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 12 of 18
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Occasional Contributor

Re: New Firmware 4.1.5 issue

It seems the Option 125 within the DHCP Discover message is corrupted in latest firmware 4.1.5

 

Some DHCP Server such as Linux DHCP Server might ignore this option and thus, for some people DHCP will work fine, but for some others such as people using a Cisco DHCP Server, it might cause an error and the DHCP Offer is never sent.

 

This has not be confirmed yet, but this is what seems to happen.

 

Message 13 of 18
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Polycom Employee & Community Manager

Re: New Firmware 4.1.5 issue

Hello Dave,

 

I can confirm that a ticket was raised with our support team in North America for this issue and I tested this in the lab and can confirm that UCS 4.1.5 seems to have a malformed DHCP sub option 125.

 

subOption.png

 

This is being investigated and once a fix has been targeted I will provide an update.

 

Best Regards

 

Steffen Baier

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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 14 of 18
Highlighted
Occasional Advisor

Re: New Firmware 4.1.5 issue

Yes, the option 125 packet is causing the issue.  The same packet on 4.1.4 is fine.  This will cause dhcp to fail when using vlans. 

 

When we play with the vlan settings on the router/switch, we can get the phones to complete the dhcp transaction.  However, if the router or switch is rebooted, dhcp will fail again.  To resovled, we muwt play with the vlan settings.

 

Not an ideal situation.  I have still have a service request opened with Polycom and am also working with Edgewater networks who are also indicating the issue is with option 125 on 4.1.5.

Message 15 of 18
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Occasional Advisor

Re: New Firmware 4.1.5 issue

My SR is 1-410231521.  I provided captures using 4.1.4 and 4.1.5.  DHCP seems to fail when using vlans and 4.1.5.  When I disable VLANs, the malformed packet does not cause a failure. 

Message 16 of 18
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Polycom Employee & Community Manager

Re: New Firmware 4.1.5 issue

Hello sevenbelow,

I have seen that the support team in North America already provided you with the hotfix on Friday.


Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 17 of 18
Highlighted
Polycom Employee & Community Manager

Re: New Firmware 4.1.5 issue

Hello all,

 

the UCS 5.0.1 release includes the following fix:

 

  • VOIP-89079 DHCP Discovery Sub option 125 send from phone has malformed option.

 

Best Regards

 

Steffen Baier

----------------

Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 18 of 18