Authentication - Lenovo Flex System Fabric CN4093 Application Manual

Authentication

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CN4093 Application Guide for N/OS 8.4
RIPv2 authentication uses plain text password for authentication. If configured
using Authentication password, then it is necessary to enter an authentication key
value.
The following method is used to authenticate a RIP message:
 If the router is not configured to authenticate RIPv2 messages, then RIPv1 and
unauthenticated RIPv2 messages are accepted; authenticated RIPv2 messages
are discarded.
 If the router is configured to authenticate RIPv2 messages, then RIPv1 and
RIPv2 messages which pass authentication testing are accepted;
unauthenticated and failed authentication RIPv2 messages are discarded.
For maximum security, RIPv1 messages are ignored when authentication is
enabled (interface ip <x>/ ip rip auth type/password); otherwise, the
routing information from authenticated messages is propagated by RIPv1 routers
in an unauthenticated manner.