Configuring Route Filtering - HPE FlexNetwork HSR6800 Configuration Manual

Routing for Network
Destination
44.44.44.44/32
14.14.14.0/24
22.22.22.22/32
12.12.12.0/24
Total Nets: 4
Intra Area: 4
# Display OSPF neighbors and routes on Router B.
<RouterB> display ospf peer
Area: 0.0.0.0
Router ID
192.168.1.41
<RouterB> display ospf routing
Routing for Network
Destination
44.44.44.44/32
14.14.14.0/24
22.22.22.22/32
12.12.12.0/24
Total Nets: 4
Intra Area: 4
The output shows that when an active/standby switchover occurs on Router S, the neighbor
relationships and routing information on Router A and Router B have not changed and the
traffic from Router A to Router B has not been impacted.

Configuring route filtering

Network requirements
•
In Figure
•
Router A works as the ABR between Area 0 and Area 1. Router B works as the ABR between
Area 0 and Area 2.
•
Configure Router C as an ASBR to redistribute external routes (static routes), and configure a
filter policy on Router C to filter out route 3.1.3.0/24.
•
Configure a routing policy on Router A to filter route 10.5.1.0/24.
Cost
2
2
0
1
Inter Area: 0
OSPF Process 1 with Router ID 44.44.44.44
Neighbor Brief Information
Address
14.14.14.2
OSPF Process 1 with Router ID 44.44.44.44
Routing Tables
Cost
0
1
2
2
Inter Area: 0
31, all the routers in the network run OSPF. The AS is divided into three areas.
Type NextHop
Stub 12.12.12.2
Transit 12.12.12.2
Stub 22.22.22.22
Transit 12.12.12.1
ASE: 0 NSSA: 0
Pri Dead-Time Interface
1 33 GE2/1/1
Type NextHop
Stub 44.44.44.44
Transit 14.14.14.1
Stub 14.14.14.2
Transit 14.14.14.2
ASE: 0 NSSA: 0
109
AdvRouter Area
44.44.44.44 0.0.0.0
192.168.1.41 0.0.0.0
192.168.1.40 0.0.0.0
192.168.1.40 0.0.0.0
State
Full/DR
AdvRouter Area
44.44.44.44 0.0.0.0
192.168.1.41 0.0.0.0
192.168.1.40 0.0.0.0
192.168.1.40 0.0.0.0