[cisco-voip] CUCM 7.1 Change Default Gateway and Subnetmask

[Reto Gassmann]

Hi Mike

thanks for sharing this limitation.
According to our network guys the 1024 arp table limitation is not a
problem since we use 4 C-class nets (10.10.10.6/22). That network can
maximal have 1022 Hosts (ARP Entries). So we should be fine with this
network.

However what do I have to do to change the gateway and the network mask?

Thanks for help
Reto

2012/1/24 Mike King <me at mpking.com>

> Someone else correct me if I'm wrong,
>
> But think that is considered a "bad idea."
>
> http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/rel_notes/6_1_4/cucm-rel_note-614.html#wp871286
>
> You would hit the hard limit of 1024 arp table entries.
>
> This limitation exists all the way up to 8.5.1 (I could only
> find Cisco documentation referencing 6.1 quickly however)
>
> Mike
>
>
>
> On Tue, Jan 24, 2012 at 8:56 AM, Reto Gassmann <voip at mrga.ch> wrote:
>
>> Hello Group
>>
>> because of a network change (larger subnets) we need to change the
>> default gateway and the subnet mask of all of our CUCM 7.1(3a) and CUPS
>> 7.0(8) servers.
>> The server IP addresses are not changed and stay the same.
>>
>> Server1 (IP:10.10.10.6; SN:255.255.255.248; GW:10.10.10.1) ->
>> (IP:10.10.10.6; SN:255.255.252.0; GW:10.10.8.1)
>> Server2 (IP:10.10.10.14; SN:255.255.255.248; GW:10.10.10.9) ->
>> (IP:10.10.10.14; SN:255.255.252.0; GW:10.10.8.1)
>>
>> Has anyone done that before and can advice my how to do that the easiest
>> way.
>>
>> Thanks
>> Reto
>>
>> _______________________________________________
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>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
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