3Com 7700 Configuration Manual page 79

Perform the following configurations in RIP view.
Table 12 Route Aggregation
Operation
Activate the automatic
aggregation function of RIP-2
Disable the automatic
aggregation function of RIP-2
RIP-2 uses the route aggregation function by default.
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
Table 13 Set RIP-2 Packet Authentication
Operation
Configure RIP-2 simple
authentication key
Configure RIP-2 MD5
authentication key
Configure RIP-2 MD5
authentication identifier
Set the packet format type of
RIP-2 MD5 authentication
Cancel authentication of RIP-2
packet
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.
Command
summary
undo summary
Command
rip authentication-mode simple password-string
rip authentication-mode md5 key-string password-string
rip authentication-mode md5 key-id key-id
rip authentication-mode md5 type {nonstandard | usual}
undo rip authentication-mode
RIP 71