HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 30

Figure 6 RIPv2 authentication message 0 7 Command 15 Version 0xFFFF 31 Unused Authentication type Authentication (16 octets) • Authentication Type-A value of 2 represents simple authentication. A value of 3 represents MD5. RFC 1723 only defines simple authentication. For more information about MD5 authentication, see RFC 2453, RIP Version 2. • Authentication-Authentication data, including password information when simple authentication is adopted or including key ID, MD5 authentication data length and sequence number when MD5 authentication is adopted. NOTE: Even thougn with RIPv1, you can configure the authentication mode in interface view, the configuration will not take effect because RIPv1 does not support authentication. Supported RIP features The current implementation supports the following RIP features: • RIPv1 and RIPv2 • RIP support for multi-VPN-instance • BFD RIP periodically sends route update requests to neighbors. If no route update response for a route is received within the specified interval, RIP considers the route unreachable. This mechanism cannot detect link faults quickly. After BFD is configured for RIP, and BFD detects a broken link, RIP can quickly age out the unreachable route, thus avoiding interference to other services. Protocols and standards • RFC 1058, Routing Information Protocol • RFC 1723, RIP Version 2 - Carrying Additional Information • RFC 1721, RIP Version 2 Protocol Analysis • RFC 1722, RIP Version 2 Protocol Applicability Statement • RFC 1724, RIP Version 2 MIB Extension • RFC 2082, RIPv2 MD5 Authentication • RFC 2453, RIP Version 2 RIP configuration task list 20