Hi Folks,
Please find some pointers with the import policy for ospf; post applying policy route will no more be there in the routing table, however it will be still present in the ospf database,
Hostname: re0_re0
Model: mx240
Junos: 16.1R4.7
lab@re0_re0:r1> show ospf route extern
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1
lab@re0_re0:r1> show ospf database area 0 external extensive
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 172.168.1.0 192.168.1.100 0x80000001 847 0x22 0xdbb1 36
mask 255.255.255.0
Topology default (ID 0)
Type: 2, Metric: 0, Fwd addr: 0.0.0.0, Tag: 0.0.0.0
Aging timer 00:45:52
Installed 00:13:57 ago, expires in 00:45:53, sent 00:13:47 ago
Last changed 00:13:57 ago, Change count: 1
lab@re0_re0:r1> show ospf route
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
192.168.1.100 Intra AS BR IP 1 ge-0/0/1.1 1.1.1.1
192.168.1.102 Intra Router IP 1 ge-0/0/0.12 1.1.12.2
192.168.1.103 Intra Router IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.104 Intra Area BR IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.105 Intra Area BR IP 3 ge-0/0/0.12 1.1.12.2
192.168.1.107 Intra Area BR IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.110 Intra Router IP 1 ge-0/0/0.110 1.1.110.1
1.1.1.0/30 Intra Network IP 1 ge-0/0/1.1
1.1.12.0/30 Intra Network IP 1 ge-0/0/0.12
1.1.23.0/30 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
1.1.24.0/30 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
1.1.27.0/30 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
1.1.35.0/30 Intra Network IP 3 ge-0/0/0.12 1.1.12.2
1.1.43.0/30 Intra Network IP 3 ge-0/0/0.12 1.1.12.2
1.1.56.0/30 Inter Network IP 4 ge-0/0/0.12 1.1.12.2
1.1.73.0/30 Intra Network IP 3 ge-0/0/0.12 1.1.12.2
1.1.78.0/30 Inter Network IP 3 ge-0/0/0.12 1.1.12.2
1.1.89.0/30 Inter Network IP 4 ge-0/0/0.12 1.1.12.2
1.1.110.0/30 Intra Network IP 1 ge-0/0/0.110
1.1.114.0/30 Inter Network IP 3 ge-0/0/0.12 1.1.12.2
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1 ///// interested prefix
192.168.1.100/32 Intra Network IP 1 ge-0/0/1.1 1.1.1.1
192.168.1.101/32 Intra Network IP 0 lo0.101
192.168.1.102/32 Intra Network IP 1 ge-0/0/0.12 1.1.12.2
192.168.1.103/32 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.104/32 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.105/32 Inter Network IP 3 ge-0/0/0.12 1.1.12.2
192.168.1.107/32 Intra Network IP 2 ge-0/0/0.12 1.1.12.2
192.168.1.108/32 Inter Network IP 3 ge-0/0/0.12 1.1.12.2
192.168.1.110/32 Intra Network IP 1 ge-0/0/0.110 1.1.110.1
192.168.1.111/32 Inter Network IP 3 ge-0/0/0.12 1.1.12.2
lab@re0_re0:r1> show ospf route extern extensive
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1
area 0.0.0.0, origin 192.168.1.100, priority medium
lab@re0_re0:r1> show ospf route extern extensive
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1
area 0.0.0.0, origin 192.168.1.100, priority low
lab@re0_re0:r1> show route 172.168.1.0/24
lab@re0_re0:r1> edit
Entering configuration mode
[edit]
lab@re0_re0:r1# deactivate protocols ospf import
[edit]
lab@re0_re0:r1# commit and-quit
^[[A^[[Acommit complete
Exiting configuration mode
lab@re0_re0:r1> show route 172.168.1.0/24
inet.0: 28 destinations, 28 routes (28 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
172.168.1.0/24 *[OSPF/150] 00:00:02, metric 0, tag 0
> to 1.1.1.1 via ge-0/0/1.1
lab@re0_re0:r1> edit
Entering configuration mode
[edit]
lab@re0_re0:r1# activate protocols ospf import
[edit]
lab@re0_re0:r1# commit and-quit
^[[A^[[Acommit complete
Exiting configuration mode
lab@re0_re0:r1> show route 172.168.1.0/24
lab@re0_re0:r1> show ospf route 172.168.1.0/24
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1
lab@re0_re0:r1> show ospf route 172.168.1.0/24 extensive
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.168.1.0/24 Ext2 Network IP 0 ge-0/0/1.1 1.1.1.1
area 0.0.0.0, origin 192.168.1.100, priority low
lab@re0_re0:r1> show configuration policy-options policy-statement ospf
term 1 {
from {
protocol ospf;
external;
route-filter 172.168.1.0/24 exact;
}
then reject;
}
lab@re0_re0:r1> show configuration protocols ospf
traffic-engineering;
import ospf;
area 0.0.0.1 {
interface lo0.101;
interface ge-0/0/1.1 {
interface-type p2p;
}
}
area 0.0.0.0 {
interface ge-0/0/0.12 {
interface-type p2p;
}
}
area 0.0.0.3 {
nssa;
interface ge-0/0/0.110 {
interface-type p2p;
}
}
lab@re0_re0:r1>