Using Route Authentication with EIGRP
To enable authentication of EIGRP packets, use the following commands in Table 4.7 beginning
in interface configuration mode:
TABLE 4 . 7 EIGRP Route Authentication
Command Meaning
interface interface configure an interface type and enter interface
configuration mode
ip authentication mode eigrp
AS md5
enable MD5 authentication in EIGRP route update packets
ip authentication key-chain
eigrp as key-chain
enable authentication of EIGRP packets
key chain name identify the key chain