RADIUS Server

[corey.mckinney]

Is it possible to have a Cisco Router talk to a RADIUS server for ppp authentication?

[amon.hogue]

I am not an expert at this but I found an interesting cisco document on Radius that I believe answers your question with a yes. Here is the cisco document link:http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/secur_c/scprt2/scrad.htm#xtocid182641

Below is an excerpt from the doc

Networks in which a user must only access a single service. Using RADIUS, you can control user access to a single host, to a single utility such as Telnet, or to a single protocol such as Point-to-Point Protocol (PPP). For example, when a user logs in, RADIUS identifies this user as having authorization to run PPP using IP address 10.2.3.4 and the defined access list is started.

[Richard Burts]

Corey

The link that Amon posted is an interesting one. He is correct in believing that it leads to an answer of yes. I can affirm that from direct experience. I have several routers supporting users with ppp sessions which are authenticated to a radius server. It works quite well for us.

HTH

Rick