3Com Switch 7700 Configuration Manual page 105

By default, RIP is not enabled.
Enabling the RIP Interface
For flexible control of RIP operation, you can specify the interface and configure
the network where it is located in the RIP network, so that these interfaces can
send and receive RIP packets.
Perform the following configurations in RIP view.
Table 7 Enabling RIP Interface
Operation
Enable RIP on the specified network interface
Disable RIP on the specified network interface undo network network-address
After the RIP interface is enabled, you should also specify its operating network
segment, because RIP only operates on the interface when the network segment
has been specified. RIP does not receive or send routes for an interface that is not
on the specified network, and does not forward its interface route.
The network-address parameter is the address of the enabled or disabled network,
and it can also be configured as the IP network address of the appropriate
interfaces.
When a network command is used for an address, the effect is to enable the
interface of the network with the address. For example, for network
129.102.1.1, you can see network 129.102.0.0 using either the display
current-configuration command or the display rip command.
Configuring Unicast RIP Messages
RIP is a broadcast protocol. To exchange route information with the non-broadcast
network, the unicast transmission mode must be adopted.
Perform the following configuration in the RIP view.
Table 8 Configuring Unicast RIP Messages
Operation
Configure unicast RIP messages
Cancel unicast RIP messages
By default, RIP does not send messages to unicast addresses.
Usually, this command is not recommended because the opposite side does not
need to receive two of the same messages at a time. It should be noted that the
peer command should also be restricted by the rip work, rip output, rip input
and network commands.
Specifying the RIP Version
RIP has two versions, RIP-1 and RIP-2. You can specify the version of the RIP packet
processed by the interface.
RIP-1 broadcasts the packets. RIP-2 can transmit packets by both broadcast and
multicast. By default, multicast is adopted for transmitting packets. In RIP-2, the
Command
network network-address
Command
peer ip-address
undo peer ip-address
RIP 97