Specifications

171
Figure 10-25 RIPv2 Message Format
The detailed explanations of each field are stated as following:

Version: Version of RIP. For RIPv2 the value is 0x02.

Route Tag: Route Tag.

IP Address: Destination IP address. It can be a natural network address, subnet address
or host address.

Subnet Mask: Mask of the destination address.

Next Hop: If set to be 0.0.0.0, it indicates that the originator of the route is the best next
hop; otherwise it indicates a next hop better than the originator of the route.
 RIPv2 authentication
RIPv2 sets the AFI field of the first route entry as 0xFFFF to identify authentication information.
See Figure 10-26.
Figure 10-26 RIPv2 Authentication Message

Authentication Type: A value of 2 represents plain text authentication, while a value of 3
indicates MD5 authentication.

Authentication: Authentication data, including password information when plain text
authentication is adopted or including key ID, MD5 authentication data length and
sequence number when MD5 authentication is adopted.
Note
：
RFC 1723 only defines plain text authentication. For more information about MD5 authentication,
please see RFC 2453 RIP Version 2.
This function includes three submenus: Basic Config, Interface Config and RIP Database.
10.8.1 Basic Config
RIP(Routing Information Protocol) is a dynamic router protocol with Distance Vector Algorithms.
You could config the protocol below to active as you like.