RE: TACACS+ server recommendations?

[Kevin Burke via NANOG <nanog () nanog org>]

Is anyone using two factor authentication for network devices?

Getting ready to re-do our authentication infrastructure and was curious if this is common.  We are noticing a lot of 
Active Directory based two factor solutions as well as some TACACS solutions that have already been mentioned that can 
use AD as the backend.  Also curious if others have tried this and noticed any obvious downsides.

Thanks!

Kevin Burke
802-540-0979
Burlington Telecom
200 Church St, Burlington, VT