H3C Technologies H3C S12500 Series Switches - Manual (Page 140)

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127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
4. On Switch C, filter out route 3.1.3.0/24:
# Configure the IPv4 prefix list.
[SwitchC] ip ip-prefix prefix1 index 1 deny 3.1.3.0 24
[SwitchC] ip ip-prefix prefix1 index 2 permit 3.1.1.0 24
[SwitchC] ip ip-prefix prefix1 index 3 permit 3.1.2.0 24
# Reference the prefix list to filter out route 3.1.3.0/24.
[SwitchC] ospf 1
[SwitchC-ospf-1] filter-policy ip-prefix prefix1 export static
# Display the OSPF routing table on Switch A.
display ip routing-table
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost NextHop Interface
3.1.1.0/24 O_ASE 150 1 10.2.1.2 Vlan200
3.1.2.0/24 O_ASE 150 1 10.2.1.2 Vlan200
10.1.1.0/24 Direct 0 0 10.1.1.1 Vlan100
10.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
10.2.1.0/24 Direct 0 0 10.2.1.1 Vlan200
10.2.1.1/32 Direct 0 0 127.0.0.1 InLoop0
10.3.1.0/24 OSPF 10 4 10.1.1.2 Vlan100
10.4.1.0/24 OSPF 10 13 10.2.1.2 Vlan200
10.5.1.0/24 OSPF 10 14 10.1.1.2 Vlan100
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
The route destined for network 3.1.3.0/24 is filtered out.
5. On Switch A, filter out the route 10.5.1.1/24:
# Configure the ACL on Switch A.
system-view
[SwitchA] acl number 2000
[SwitchA-acl-basic-2000] rule 0 deny source 10.5.1.0 0.0.0.255
[SwitchA-acl-basic-2000] rule 1 permit source any
[SwitchA-acl-basic-2000] quit
# Use the ACL to filter route 10.5.1.0/24.
[SwitchA] ospf 1
[SwitchA-ospf-1] filter-policy 2000 import
[SwitchA-ospf-1] quit
# Display the OSPF routing table on Switch A.
[SwitchA] display ip routing-table
Routing Tables: Public
Destinations : 10 Routes : 10
Destination/Mask Proto Pre Cost NextHop Interface