RIP 113
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.
When the network command is used for an address, the effect is to enable the
interface of the network with this address. For example, for network 129.102.1.1,
you can see network 129.102.0.0 either using the
display
current-configuration
command, or using the display rip command.
By default, RIP is disabled on all interfaces.
Configuring Unicast RIP Messages
RIP is a broadcast protocol which uses broadcast or multicast addresses to send
packets. To exchange routing information with a non-broadcast network, unicast
transmission mode must be used.
Perform the following configuration in the RIP View.
By default, RIP does not send messages to unicast addresses.
3Com does not recommend the use of this command, because the destination
address does not need to receive two copies of the same message at the same
time. Note that
peer should be restricted using the following commands: rip
work
, rip output, rip input and network.
Specifying the RIP Version
RIP has two versions, RIP-1 and RIP-2. You can specify the version of the RIP packet
used 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
default multicast address is 224.0.0.9. The advantage of transmitting packets in
multicast mode is that the hosts in the same network that do not run RIP, do not
receive RIP broadcast packets. In addition, this mode prevents the hosts that are
running RIP-1 from incorrectly receiving and processing the routes with subnet
masks in RIP-2. When an interface is running RIP-2, it can also receive RIP-1
packets.
Perform the following configuration in Interface View.
Tab le 106 Configuring unicast RIP messages
Operation Command
Configure unicast RIP message peer ip_address
Cancel unicast RIP message undo peer ip_address
Tab le 107 Specifying RIP Version of the Interface
Operation Command
Specify the interface version as
RIP-1
rip version 1
Specify the interface version as
RIP-2
rip version 2 [ broadcast | multicast ]
Restore the default RIP version
running on the interface
undo rip version
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