Solved: Changins Subnet Mask and Gateway for CUCM & CUC 8.6

Jagsuvce G · ‎11-19-2013

Hi,

Am planning for cutting down the Subnet of Telecom Servers IP Range. Once i do this, all CUCM & CUC servers Subnet mask and Gateway has to be changed, but IP Address remains the same.

Changing the Subnet mask and Gateway will impact anything or any precautionary measures or any procedures to be followed ??

Pls suggest.

Regards

Jagadish G

Aman Soi · ‎11-20-2013

Hi Jagadish,

I was just referring the DOC which I have attached which says

Initial Trust List and Certificate Regeneration

If you change the IP address or the hostname of a server in a Cisco Unified Communications Manager release 8.0 or later cluster, the Initial Trust List (ITL) file and the certificates in the ITL are regenerated. The regenerated files do not match the files stored on the phones.

regds,

aman

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Jaime Valencia · ‎11-19-2013

Not if youre using MCS, otherwise, youll need to rehost the licenses as it affects the license MAC

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HTH

java

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Jagsuvce G · ‎11-19-2013

Yes we are using Cisco MCS 7800 series servers. How will the mac gets affected ??

Jaime Valencia · ‎11-19-2013

It wont, that only affects if you are running over ESXi

Sent from Cisco Technical Support iPad App

HTH

java

if this helps, please rate

Aman Soi · ‎11-19-2013

Hi Jagadish,

you can refer the link for details

http://docwiki.cisco.com/wiki/Licensing_Model_for_Virtualized_UC_Applications

regds,

aman

Jagsuvce G · ‎11-19-2013

So i can go a head and change the subnet mask and default gateway without any measures right ??

Aman Soi · ‎11-19-2013

Hi Jagadish,

you can do that.

you can refer the link

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/8_0_2/ipchange/ipchg802.html

regds,

aman

Jagsuvce G · ‎11-19-2013

Hi,

Will the ITL files gets changed/regenerated after changing only the Subnet Mask & Gateway ??.

Aman Soi · ‎11-20-2013

Hi Jagadish,

I was just referring the DOC which I have attached which says

Initial Trust List and Certificate Regeneration

If you change the IP address or the hostname of a server in a Cisco Unified Communications Manager release 8.0 or later cluster, the Initial Trust List (ITL) file and the certificates in the ITL are regenerated. The regenerated files do not match the files stored on the phones.

regds,

aman