If you are looking for a way to have IOS routers authenticate directly with an RSA token server, I do not believe that this is supported. You should be able to get authentication on the router using RSA tokens by configuring aaa authentication on the router to go to an authentication server (perhaps ACS) which would use RSA as an external authentication service.
do you mean that I will still be able to use the token in the scenario that you have mentioned even if i am not authentication directly with a RSA token server? is there any link that describe and explain how to configure it ?
Yes you can use the RSA tokens to authenticate on the IOS router. But the authentication communication is not directly from the router to the RSA server. The router should use Radius to an authentication server like ACS, and the authentication server is acting as the RSA client.
The router (or switch) only knows that it's using external authentication (your ACS server). It's the credentials you present at login time that the ACS server uses in passing your user-provided tokencode to the RSA server. The router is just passing your credentials along and waiting for access authorization to be returned from the ACS server.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...