Intel ER8100STUS - Express 8100 Router, Reference Manual

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Reference.bok : Chapter08 65 Wed Apr 22 10:58:08 1998
65
Routing Information Protocol (RIP)
IP Routing
RIP and RIP-2 in the
network environment
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.
Note
Different links on a router can use different RIP versions. In this case,
the router performs conversion between the two RIP versions.
Routing updates are sent as broad-
casts—most network devices listen
to them. Routing updates are sent as multicasts
and many network devices do not lis-
ten to them.
Subnet hiding is only done when
sending routing updates on num-
bered links—subnetworks are sum-
marized by routers. No subnet hiding is done. This results
in larger routing tables as all subnet-
works are listed.
Routing updates are not authenti-
cated. 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-1 RIP-2
LAN WAN 1 WAN 2 System
®
Intel Express Router 9200
RIP-1 RIP-1
RIP-2 not allowed Subnet1
using RIP-1
Subnet 2
using RIP-2
1471
Router performs conversion
between RIP-1 and RIP-2
RIP-1
RIP-2
RIP-2
RIP-2
RIP-2 RIP-2
Router
LAN WAN 1 WAN 2 System
®
Intel Express Router 9200
Router
LAN WAN 1 WAN 2 System
® Intel Express Router 9200
Router
LAN WAN 1 WAN 2 System
® Intel Express Router 9200
Router
LAN WAN 1 WAN 2 System
® Intel Express Router 9200
Router
LAN WAN 1 WAN 2 System
® Intel Express Router 9200
Router