Chapter 13 RIP Configuration
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TABLE 215 AUTHENTICATION MODE COMMAND
Command
Format
Command
Mode
Command Function
ip rip
authentication
mode
{text|md5}
RIP Interface
Config
This designates
authentication type used for
RIP packets
text refers to Clears text authentication.
Md5 refers to Keyed MD5 authentication.
RIP Version 1 does not support authentication.
Result: This configures authentication mode for RIP.
6. To enable split horizon mechanism, use ip split-horizon
command in RIP interface configuration mode as shown in
Table 216 . To disable the split horizon mechanism, use the
no form of this command.
TABLE 216 SPLIT HORIZON COMMAND WINDOW
Command
Format
Command
Mode
Command Function
ip split-horizon
RIP
Interface
Config
This enables the split
horizon mechanism
This command has no arguments or keywords.
For all interfaces except those for which either Frame Relay or
SMDS encapsulation is enabled, the default condition for this
command is ip split-horizon; in other words, the split horizon
feature is active.
Important! For networks that include links over X.25 PSNs, the
neighbor RIP router configuration command use to defeat the
split horizon feature.
This can act, as an alternative explicitly specify the no ip split-
horizon command in your configuration. However, if this
happens there must similarly disable split horizon for all routers
in any relevant multicast groups on that network.
Important! If split horizon is disabled on an interface and there
is requirement to enable it, use the ip split-horizon command to
restore the split horizon mechanism
Important! In general, changing state of the default for the ip
split-horizon command is not recommended, this is certain that
application requires a change in order to properly advertise
routes. If split horizon is disabled on a serial interface (and that
interface is attached to a packet-switched network), this is must
to disable split horizon or all routers and access servers in any
relevant multicast groups on that network.
Result: This configures split horizon mechanism.
IP Split
Horizon
No-IP Split
Horizon
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