Vigor3900 Series User’s Guide
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The Routing Information Protocol (RIP) is a dynamic routing protocol used in local
and wide area networks. The routing information packet will be sent out by web
server or router periodically, and can be used to communicate with other routers. It
will calculate the number of network nodes on the route to ensure there is no
obstruction on the network routine. In addition, it will choose a correct route based
on the method of Distance Vector Routing and use the Bellman-Ford algorithm to
calculate the routing table.
RIP can update the routing table automatically and find a route to send packet. See the
following figure as an example: a unique
Suppose A supports RIP on WAN1/WAN2/WAN3/WAN4, B supports RIP on WAN1 and
WAN2, and C supports RIP on WAN1/WAN2/WAN3/WAN4.
B will tell A "if you want to send packets to C, please send it to me first", then A will create
a routing rule to forward packet that destination is C to B.
In another direction, C will do the same thing.
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