Operation Manual – IPv4 RoutingH3C S5500-EI Series Ethernet Switches Chapter 2 RIP Configuration2-5z Next Hop: If set to 0.0.0.0, it indicates that the originator of the route is the bestnext hop; otherwise it indicates a next hop better than the originator of the route.III. RIPv2 authenticationRIPv2 sets the AFI field of the first route entry to 0xFFFF to identify authenticationinformation. See Figure 2-3.Figure 2-3 RIPv2 Authentication Messagez Authentication Type: 2 represents plain text authentication, while 3 representsMD5.z Authentication: Authentication data, including password information when plaintext authentication is adopted or including key ID, MD5 authentication data lengthand sequence number when MD5 authentication is adopted.Note:z RFC 1723 only defines plain text authentication. For information about MD5authentication, refer to RFC2082 “RIPv2 MD5 Authentication”.z With RIPv1, you can configure the authentication mode in interface view. However,the configuration will not take effect because RIPv1 does not support authentication.2.1.5 Supported RIP FeaturesThe current implementation supports RIPv1 and RIPv22.1.6 Protocols and StandardsRFC 1058: Routing Information ProtocolRFC 1723: RIP Version 2 - Carrying Additional InformationRFC 1721: RIP Version 2 Protocol AnalysisRFC 1722: RIP Version 2 Protocol Applicability StatementRFC 1724: RIP Version 2 MIB Extension
