3Com SuperStack 4 Configuration Manual page 113

Perform the following configuration in Interface View:
Table 121 Setting RIP-2 Packet Authentication
Operation
Configure RIP-2 simple authentication key
Configure RIP-2 MD5 authentication with
packet type following RFC 1723
Configure RIP-2 MD5 authentication with
packet type following RFC 2082
Cancel authentication of RIP-2 packet
The packet format follows RFC1723 and
usual
Configuring 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 P2P connected links but is applicable on the Ethernet.
Perform the following configuration in Interface View:
Table 122 Configuring Split Horizon
Operation
Enable split horizon
Disable split horizon
By default, split horizon is enabled.
Enabling 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 routes from protocols including direct, static and OSPF.
Perform the following configurations in RIP View.
Table 123 Enabling RIP to Import Routes of Other Protocols
Operation
Enable RIP to import routes of other
protocols
Disable route imports from other
protocols
By default, RIP does not import the route information of other protocols.
Configuring the Default Cost for the Imported Route
When you use the
import-route
protocols, you can specify their cost. If you do not specify the cost of the imported
Command
rip authentication-mode simple
password_string
rip authentication-mode md5 usual
key_string
rip authentication-mode md5
nonstandard
undo rip authentication-mode
nonstandard
Command
rip split-horizon
undo rip split-horizon
Command
import-route protocol
route_policy_name
route-policy
undo import-route protocol
command to import the routes of other
RIP 125
key_string key_id
follows RFC2082.
[ cost value ] [
]