Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Setting up ISDN for dial-up

I have 2650XM and we are interested in setting it up as our dial-up router using a PRI ISDN circuit. At the moment we are using a 16 port analog modem module installed on a 3661 router for our dialup using AAA and RADIUS.

We would like to change that where we use ISDN PRI at our main site and terminate it on the 2650XM.

I need some pointers on the other equipments (cards) and configuration that I will need so that dialup users using dial into the network and get authenticated using RADIUS

Please I need your help

Thank you

VIP Purple

Re: Setting up ISDN for dial-up


regarding he hardware, you would need an E1 module, such as the NM-1CE1T1-PRI, check the link below:

Cisco E1/T1 ISDN PRI Network Module

Regarding the configuration, have a look at the sample configuration below (you need the configuration for the ´maui-nas-01´ router), it has RADIUS, a T1, as well as async connectivity, which you probably do not need, so leave the part with the ´Group-Async0´ out.

Configuring Basic AAA RADIUS for Dial-in Clients



New Member

Re: Setting up ISDN for dial-up

Thank you GP for the info. Would you be able to tell me whether the 2650XM router will need the digital modems. I believe the 2650XM have only one network module slot which will be used for the E1/PRI network module on this case.

I need you advice

CreatePlease login to create content