My company has a cisco 3620 as a pppoe server for dsl and other services connections that require radius authentication. The set up in this router is working fine with a IOS version 12.2(basically in the setup, we used vpdn groups).
Recently, for test purposes and to go further in the deployment of VoIP services, we've decided to test similar functionalities using a cisco 2821 as a PPPoe server (shipped version is 12.3) but the problem is that we can't find any command we used to use with our first cisco 3620 server(vpdn), and therefore our configuration doesnt seem to work(in this version of this hardware, the ios shows the concept of bba-group).
Do we have to downgrade to find our commands related to vpdn groups for the cisco 2821? or there is another way to solve this.