Switch 7700 Configuration Guide, v2

72 CHAPTER 5: ROUTING PROTOCOL OPERATION
Set RIP-2 Packet Authentication
RIP-1 does not support packet authentication. However, you can configure packet
authentication on RIP-2 interfaces.
RIP-2 supports two authentication modes:
■ Simple authentication — Does not ensure security. The unencrypted
authentication key is sent with the packet, so simple authentication should not
be applied when there are high security requirements
■ MD5 authentication — Uses two packet formats: One follows RFC1723 (RIP
Version 2 Carrying Additional Information) and another one follows the
RFC2082 (RIP-2 MD5 Authentication).
Perform the following configuration in VLAN interface view
MD5 authentication is applied by default. If the MD5 authentication type is not
specified, the nonstandard packet format type following RFC2082 is applied.
Configure Split Horizon
Split horizon means that the route received through an interface will not be sent
through this interface again. The split horizon algorithm can reduce the
generation of routing loops. But in some special cases, split horizon must be
disabled to obtain correct advertising at the cost of efficiency. Disabling split
horizon has no effect on the P2P connected links but is applicable on the Ethernet.
Perform the following configuration in VLAN interface view.
By default, split horizon of the interface is enabled.
Configure RIP to Import Routes of Other Protocols
RIP allows users to import the route information of other protocols into the
routing table.
RIP can import direct, static, OSPF, BGP, and other routes.
Tab le 14 Set RIP-2 Packet Authentication
Operation Command
Configure RIP-2 simple
authentication key
rip authentication-mode simple password-string
Configure RIP-2 MD5
authentication key
rip authentication-mode md5 key-string password-string
Configure RIP-2 MD5
authentication identifier
rip authentication-mode md5 key-id key-id
Set the packet format type of
RIP-2 MD5 authentication
rip authentication-mode md5 type {nonstandard | usual}
Cancel authentication of RIP-2
packet
undo rip authentication-mode
Tab le 15 Configure Split Horizon
Operation Command
Enable split horizon rip split-horizon
Disable split horizon undo rip split-horizon