H3C Technologies H3C SR8800 - Manual (Page 59)

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[RouterB] rip
[RouterB-rip-1] network 1.0.0.0
[RouterB-rip-1] network 10.0.0.0
# Display the RIP routing table on Router A.
[RouterA] display rip 1 route
Route Flags: R - RIP, T - TRIP
P - Permanent, A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------------------
Peer 1.1.1.2 on GigabitEthernet1/1/1
Destination/Mask Nexthop Cost Tag Flags Sec
10.0.0.0/8 1.1.1.2 1 0 RA 9
The output shows that RIPv1 uses natural mask to advertise routing information.
3. Configure a RIP version:
# Configure RIPv2 on Router A.
[RouterA] rip
[RouterA-rip-1] version 2
[RouterA-rip-1] undo summary
# Configure RIPv2 on Router B.
[RouterB] rip
[RouterB-rip-1] version 2
[RouterB-rip-1] undo summary
# Display the RIP routing table of Router A.
[RouterA] display rip 1 route
Route Flags: R - RIP, T - TRIP
P - Permanent, A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------------------
Peer 1.1.1.2 on GigabitEthernet1/1/1
Destination/Mask Nexthop Cost Tag Flags Sec
10.0.0.0/8 1.1.1.2 1 0 RA 87
10.1.1.0/24 1.1.1.2 1 0 RA 19
10.2.1.0/24 1.1.1.2 1 0 RA 19
The output shows that RIPv2 uses classless subnet mask.
NOTE:
Because RIPv1 routing information has a long aging time, it will still exist before being aged out after RIPv2
is configured.
Configuring RIP route redistribution
Network requirements
As shown in the following figure:
• Two RIP processes are running on Router B, which communicates with Router A through RIP 100 and
with Router C through RIP 200.
• Configure RIP 200 to redistribute direct routes and routes from RIP 100 on Router B. Router C can
then learn routes destined for 10.2.1.0/24 and 11.1.1.0/24, and Router A cannot learn routes
destined for 12.3.1.0/24 and 16.4.1.0/24.