Public IP Solution on CMTS | docsis.org

You are here

Public IP Solution on CMTS

4 posts / 0 new
Last post
Endrit
Public IP Solution on CMTS

Is there any solution for different CMTS's to use simultaneously the same public subnet ?
I am currently using CASA CMTS and Motorola BSR 64K.

Constantly i am facing a problem where every time i add a new CMTS or migrate a client from one CMTS to another the client is forced to change it's public ip address and doing so we have to add for each CMTS a different subnet.

Is this a thing that can be done at the dhcp server or CMTS configuration or should i configure a particular file to the modem ?

Any lead will help

Regards,
Endrit

bajojoba
L2VPN

Docsis enables you to use l2vpn setup in your configuration file of cable modem. That way you can aggregate vlan on a different router. I think is called BSoD Docsis. Take a look at it. This should solve your probem. If you have any additional questions please contact me on: jobacare@gmail.com

jbarbieri
You could do some trickery

You could do some trickery with static IPs and dynamic routing protocols (basically, if you have a static IP on a CMTS, you create a host route for it, and that will be advertised up the network). BSOD won't quite work in this sense as you usually need a different VLAN tag for each modem. So short of going to a layer2 CMTS (which the carrier class ones are not), then the easiest thing to do would be to split your network up.

jbarbieri
You could do some trickery

Double post sorry