Lantronix
SM12XPA Web User Guide
33848 Rev. A
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23. RIP
RIP (Routing Information Protocol) lets routers exchange network topology information. It is considered an
interior gateway protocol, typically used in small to medium-sized networks.
RIP is a distance vector routing protocol which shares routing information between its neighbors to help build
the network topology table. There are currently two IPv4 RIP versions: Version 1 and Version 2. The main
difference between versions is that v2 supports subnet masks and authentication.
RIP uses a metric called hops to determine the cost of a route. A hop is a router which the traffic must pass
through. If there are three routers that the traffic must pass through, there is a route cost of three hops.
The maximum number of hops RIP will support is 15. If a route has more than 15 hops, the route will be
discarded as invalid. RIP is susceptible to routing loops and uses mechanisms such as split horizon and others
to prevent routing loops.
RIP Global Configuration
This page lets you set RIP global parameters.
Figure 22-1.1: RIP Global Configuration
Parameter descriptions
:
RIP Router Mode
: At the dropdown select Enable or Disable the RIP router operating mode.
version
: At the dropdown select Version 1 or Version 2. The main difference between v1 and v2 is that v2
supports subnet masks and authentication.
Timers
: These timers are user-configurable on the RIP Global Configuration page:
Update
: Sets the amount of time between RIP routing updates. Possible values are 3 - 21845.
The default is 30 seconds.
Invalid
: specifies how long a routing entry can be in the RIP routing table without being updated.
The default value is 180 seconds.
Garbage-Collection
: Sets the amount of time after which a route is removed from the RIP routing table.
Possible values are 0 - 65535. The default is 120 seconds.
