Just wanted to throw out a quick reminder to all of you involved day-to-day with Cisco Unified Communications in some fashion. Tomorrow I will host a free vSeminar on configuring and utilizing Active Directory as a source of LDAP user synchronization and authentication with the Cisco UC architecture servers.
In this post, we will examine PAP and CHAP forms of PPP authentication. The emphasis here will be on the fact that these technologies are one-way in nature. So many of my CCIE-level students believe that they must be configured in a bidirectional configuration. I guess this is because it is what traditional Cisco classes always demonstrate at the CCNA and CCNP levels. OK - I have pre-configured two routers, R1 and R2, they are connected by their Serial 0/0 interfaces. Let us begin with R1 as a...