Intel ER8100STUS - Express 8100 Router Reference Manual page 77

RIP and RIP-2 in the
network environment
RIP-1
Routing updates are sent as broad-
casts—most network devices listen
to them.
Subnet hiding is only done when
sending routing updates on num-
bered links—subnetworks are sum-
marized by routers.
Routing updates are not authenti-
cated.
Only one of the RIP versions should be used within a region. That is, a subnet-
work can be configured to use either RIP-1 or RIP-2 but should not try to use
both. The version of RIP in use should not be allowed on the subnetwork as it
could cause conflicts. This means that all router links within the same subnet
must be configured to use the same RIP version.
Different links on a router can use different RIP versions. In this case,
Note
the router performs conversion between the two RIP versions.
Router
Router
Intel Express Router 9200 Intel Express Router 9200
®
LAN WAN 1 WAN 2 System LAN WAN 1 WAN 2 System
RIP-1 RIP-1
Router
Router
RIP-2 RIP-2
Intel Express Router 9200 Intel Express Router 9200
®
LAN WAN 1 WAN 2 System LAN WAN 1 WAN 2 System
Router Router
Routing Information Protocol (RIP)
RIP-2
Routing updates are sent as multicasts
and many network devices do not lis-
ten to them.
No subnet hiding is done. This results
in larger routing tables as all subnet-
works are listed.
Routing updates are authenticated—
password protection can be set up to
ensure that a routing update cannot be
passed to a router from an unautho-
rized source.
®
RIP-2 not allowed
RIP-1
Router performs conversion
between RIP-1 and RIP-2
Intel Express Router 9200
®
LAN WAN 1 WAN 2 System
RIP-2
RIP-2
Intel Express Router 9200
®
LAN WAN 1 WAN 2 System
RIP-2
®
IP Routing
Subnet1
using RIP-1
Subnet 2
using RIP-2
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