ISAKMP/IKE Phase 1 Connections

In the first part of this chapter I’ll focus on troubleshooting ISAKMP/IKE Phase 1 connections. If you recall from Chapter 3, “IPsec,” the management connections built during Phase 1 are used to pass IPsec management traffic; no data traverses these connections. These connections are important, however, because they are used to build the data connections for Phase 2.

I’ve broken this part of the chapter into three areas. In the first part, I discuss the commands used to troubleshoot ISAKMP/IKE Phase 1 connections; the two sections following this are specific to L2L and remote access implementations, respectively.

Overview of the Phase 1 Commands

You can use the following router commands to troubleshoot ISAKMP/IKE ...

Get The Complete Cisco VPN Configuration Guide now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.