Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide

EIGRP Neighbor Verification Checks

Configuring Neighbor Authentication

Any two EIGRP routers that connect to the same data link, and whose interfaces have been enabled for EIGRP and are not passive, will at least consider becoming neighbors. To quickly and definitively know which potential neighbors have passed all the neighbor requirements for EIGRP, just look at the output of the show ip eigrp neighbors command. This command lists only neighbors that have passed all the neighbor verification checks.

Example 11-7 shows an example of the show ip eigrp neighbors command, with the four routers from Figure 11-3 again. In this case, all the routers ...