September 2015
Intermediate to advanced
608 pages
21h 29m
English
The Cisco implementation of RIPv2 supports two modes of authentication: plaintext authentication and MD5 authentication. Plaintext authentication mode is the default setting in every RIPv2 packet, when authentication is enabled. Plaintext authentication should not be used when security is an issue because the unencrypted authentication password is sent in every RIPv2 packet.
Note
RIP Version 1 (RIPv1) does not support authentication. If you are sending and receiving RIPv2 packets, you can enable RIP authentication on an interface.
As with both OSPF and EIGRP, MD5 authentication for RIPv2 requires configuration at the interface level (that is, for each interface in which RIP will be used). However, ...
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