注:所有以下分类操作都需要在对端ospf路由器上使用clear ip ospf process命令刷新LSDB。
1>ip ospf demand-circuit
抑制周期性refresh(使用DoNotAge位flood LSAs),无Hello更新。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
2>dababase-filter all out
抑制LSA向指定邻居、接口扩散,有Hello更新。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
R1(config-router)#neighbor ip-address database-filter all out
只能用于NBMA和P2M网络。
R1(config-if)#ip ospf database-filter all out
可以应用于所有接口。
只能用于NBMA和P2M网络。
R1(config-if)#ip ospf database-filter all out
可以应用于所有接口。
3>ip ospf flood-reductoin
抑制周期性refresh(使用DoNotAge位flood LSAs),有Hello更新。
抑制周期性refresh(使用DoNotAge位flood LSAs),有Hello更新。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
4>area area-id filter-list prefix prefix-name in/out
过滤area之间的type-3 LSA。
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
area-id想要过滤LSA的立足area。
如有两个area:area1,area2。如果想要过滤从area1->area2的1.1.1.0/24条目,则可以写为:
area 1 filter-list prefix deny_1.1.1.0 out
也可以写为:
area 0 filter-list prefix deny_1.1.1.0 in
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
area-id想要过滤LSA的立足area。
如有两个area:area1,area2。如果想要过滤从area1->area2的1.1.1.0/24条目,则可以写为:
area 1 filter-list prefix deny_1.1.1.0 out
也可以写为:
area 0 filter-list prefix deny_1.1.1.0 in
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Section I. ip ospf demand-circuit配置实例
r2#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.6
ip address 192.168.1.5 255.255.255.252
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r1_s1/0_192.168.1.2
ip address 192.168.1.1 255.255.255.252
ip ospf demand-circuit
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.1
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------
r1#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.10
ip address 192.168.1.9 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r2_s1/0_192.168.1.1
ip address 192.168.1.2 255.255.255.252
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.2
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.8 0.0.0.3 area 0
-------------------------------------------------
R4#sh run
interface Loopback0
ip address 4.4.0.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 4.4.1.1 255.255.255.0
!
interface FastEthernet0/0
description conn_to_r2_f0/0_192.168.1.5
ip address 192.168.1.6 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
router ospf 100
router-id 10.0.0.4
log-adjacency-changes
network 4.4.0.0 0.0.0.255 area 0
network 4.4.1.0 0.0.0.255 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------------
r1#clea ip ospf p
Reset ALL OSPF processes? [no]: y
r1#
r1#sh ip ospf da
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 5 (DNA) 0x80000024 0x00BFDD 3
10.0.0.2 10.0.0.2 233 0x80000002 0x00F239 3
10.0.0.4 10.0.0.4 452 (DNA) 0x80000007 0x00CC27 3
10.0.0.1 10.0.0.1 5 (DNA) 0x80000024 0x00BFDD 3
10.0.0.2 10.0.0.2 233 0x80000002 0x00F239 3
10.0.0.4 10.0.0.4 452 (DNA) 0x80000007 0x00CC27 3
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.1.5 10.0.0.1 249 (DNA) 0x80000002 0x003375
192.168.1.5 10.0.0.1 249 (DNA) 0x80000002 0x003375
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
r1#sh ip ospf int s1/0
Serial1/0 is up, line protocol is up
Internet Address 192.168.1.2/30, Area 0
Process ID 100, Router ID 10.0.0.2, Network Type POINT_TO_POINT, Cost: 64
Run as demand circuit.
DoNotAge LSA allowed.
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:06
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.0.0.1 (Hello suppressed)
Suppress hello for 1 neighbor(s)
Serial1/0 is up, line protocol is up
Internet Address 192.168.1.2/30, Area 0
Process ID 100, Router ID 10.0.0.2, Network Type POINT_TO_POINT, Cost: 64
Run as demand circuit.
DoNotAge LSA allowed.
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:06
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.0.0.1 (Hello suppressed)
Suppress hello for 1 neighbor(s)
----------------------------------------------------------------------------
Section II. database-filter all out命令配置实例:
r2#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.6
ip address 192.168.1.5 255.255.255.252
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r1_s1/0_192.168.1.2
ip address 192.168.1.1 255.255.255.252
ip ospf database-filter all out
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.1
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------
r1#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.10
ip address 192.168.1.9 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r2_s1/0_192.168.1.1
ip address 192.168.1.2 255.255.255.252
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.2
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.8 0.0.0.3 area 0
-------------------------------------------------
R4#sh run
interface Loopback0
ip address 4.4.0.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 4.4.1.1 255.255.255.0
!
interface FastEthernet0/0
description conn_to_r2_f0/0_192.168.1.5
ip address 192.168.1.6 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
router ospf 100
router-id 10.0.0.4
log-adjacency-changes
network 4.4.0.0 0.0.0.255 area 0
network 4.4.1.0 0.0.0.255 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------------
r2#sh ip ospf int s1/0
Serial1/0 is up, line protocol is up
Internet Address 192.168.1.1/30, Area 0
Process ID 100, Router ID 10.0.0.1, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Database-filter all out
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:08
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.0.0.2
Suppress hello for 0 neighbor(s)
-----------------------------------------------------
r1#clea ip ospf p
Reset ALL OSPF processes? [no]: y
r1#sh ip ospf database
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.6
ip address 192.168.1.5 255.255.255.252
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r1_s1/0_192.168.1.2
ip address 192.168.1.1 255.255.255.252
ip ospf database-filter all out
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.1
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------
r1#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.10
ip address 192.168.1.9 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r2_s1/0_192.168.1.1
ip address 192.168.1.2 255.255.255.252
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.2
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.8 0.0.0.3 area 0
-------------------------------------------------
R4#sh run
interface Loopback0
ip address 4.4.0.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 4.4.1.1 255.255.255.0
!
interface FastEthernet0/0
description conn_to_r2_f0/0_192.168.1.5
ip address 192.168.1.6 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
router ospf 100
router-id 10.0.0.4
log-adjacency-changes
network 4.4.0.0 0.0.0.255 area 0
network 4.4.1.0 0.0.0.255 area 0
network 192.168.1.4 0.0.0.3 area 0
----------------------------------------------------
r2#sh ip ospf int s1/0
Serial1/0 is up, line protocol is up
Internet Address 192.168.1.1/30, Area 0
Process ID 100, Router ID 10.0.0.1, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Database-filter all out
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:08
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.0.0.2
Suppress hello for 0 neighbor(s)
-----------------------------------------------------
r1#clea ip ospf p
Reset ALL OSPF processes? [no]: y
r1#sh ip ospf database
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.2 10.0.0.2 11 0x80000002 0x00F239 3
10.0.0.2 10.0.0.2 11 0x80000002 0x00F239 3
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
注:抑制除邻居Router LSA之外的所有LSAs,因为还需要邻居Router LSA维护Adjacency。
+++++++++++++++++++++++++++++++++++++++++++++++++
Section III. ip ospf flood-reduction配置实例
r2(config)#int s1/0
r2(config-if)#no ip ospf database-filter all out
r2(config-if)#
r2(config-if)#
*Mar 1 01:06:54.199: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.2 on Serial1/0 from FULL to
r2(config-if)#no ip ospf database-filter all out
r2(config-if)#
r2(config-if)#
*Mar 1 01:06:54.199: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.2 on Serial1/0 from FULL to
DOWN, Neighbor Down: Interface down or deta
r2(config-if)#
r2(config-if)#
r2(config-if)#
*Mar 1 01:06:56.775: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.2 on Serial1/0 from LOADING
r2(config-if)#
r2(config-if)#
r2(config-if)#
*Mar 1 01:06:56.775: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.2 on Serial1/0 from LOADING
to FULL, Loading Doneip ospf
r2(config-if)#
r2(config-if)#
r2(config-if)#
r2(config-if)# ip ospf flood-reduction
-----------------------------------------------------------------------------
r1#sh ip ospf database
r2(config-if)#
r2(config-if)#
r2(config-if)#
r2(config-if)# ip ospf flood-reduction
-----------------------------------------------------------------------------
r1#sh ip ospf database
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 1 (DNA) 0x8000001F 0x00C9D8 3
10.0.0.2 10.0.0.2 86 0x80000002 0x00F239 3
10.0.0.4 10.0.0.4 206 (DNA) 0x80000007 0x00CC27 3
10.0.0.1 10.0.0.1 1 (DNA) 0x8000001F 0x00C9D8 3
10.0.0.2 10.0.0.2 86 0x80000002 0x00F239 3
10.0.0.4 10.0.0.4 206 (DNA) 0x80000007 0x00CC27 3
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.1.5 10.0.0.1 2 (DNA) 0x80000002 0x003375
-------------------------------------------------------------------------------
192.168.1.5 10.0.0.1 2 (DNA) 0x80000002 0x003375
-------------------------------------------------------------------------------
Section IV. area area-id filter-list prefix prefix-name in/out配置实例
r2#sh run
interface FastEthernet0/0
description conn_to_r3_f0/0_192.168.1.6
ip address 192.168.1.5 255.255.255.252
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r2_s1/0_192.168.1.2
ip address 192.168.1.1 255.255.255.252
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.1
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.4 0.0.0.3 area 1
----------------------------------------------------
r1#sh run
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface Serial1/0
description conn_to_r2_s1/0_192.168.1.1
ip address 192.168.1.2 255.255.255.252
serial restart-delay 0
!
router ospf 100
router-id 10.0.0.2
log-adjacency-changes
network 192.168.1.0 0.0.0.3 area 0
network 192.168.1.8 0.0.0.3 area 0
----------------------------------------------------
r4#sh run
interface Loopback0
ip address 4.4.0.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 4.4.1.1 255.255.255.0
!
interface FastEthernet0/0
description conn_to_r2_f0/0_192.168.1.5
ip address 192.168.1.6 255.255.255.252
duplex auto
speed auto
!
router ospf 100
router-id 10.0.0.4
log-adjacency-changes
network 4.4.0.0 0.0.0.255 area 1
network 4.4.1.0 0.0.0.255 area 1
network 192.168.1.4 0.0.0.3 area 1
----------------------------------------------------
r2#clear ip ospf p
r2#clear ip ospf process
Reset ALL OSPF processes? [no]: y
r2#
r2#
r2#
*Mar 1 01:31:57.139: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.2 on Serial1/0 from FULL to
DOWN, Neighbor Down: Interface down or detached
*Mar 1 01:31:57.183: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.4 on FastEthernet0/0 from
*Mar 1 01:31:57.183: %OSPF-5-ADJCHG: Process 100, Nbr 10.0.0.4 on FastEthernet0/0 from
FULL to DOWN, Neighbor Down: Interface down or detached
-----------------------------------------------------
r2#sh ip ospf database
-----------------------------------------------------
r2#sh ip ospf database
OSPF Router with ID (10.0.0.1) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 11 0x80000003 0x00406C 2
10.0.0.2 10.0.0.2 18 0x80000004 0x002F7B 2
10.0.0.1 10.0.0.1 11 0x80000003 0x00406C 2
10.0.0.2 10.0.0.2 18 0x80000004 0x002F7B 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.0.0 10.0.0.1 8 0x80000001 0x00D84F
4.4.1.1 10.0.0.1 8 0x80000001 0x00C362
192.168.1.4 10.0.0.1 12 0x80000004 0x00368C
4.4.0.0 10.0.0.1 8 0x80000001 0x00D84F
4.4.1.1 10.0.0.1 8 0x80000001 0x00C362
192.168.1.4 10.0.0.1 12 0x80000004 0x00368C
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 11 0x80000004 0x004FE9 1
10.0.0.4 10.0.0.4 18 0x80000008 0x00D120 3
10.0.0.1 10.0.0.1 11 0x80000004 0x004FE9 1
10.0.0.4 10.0.0.4 18 0x80000008 0x00D120 3
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.6 10.0.0.4 18 0x80000005 0x00059C
Link ID ADV Router Age Seq# Checksum
192.168.1.6 10.0.0.4 18 0x80000005 0x00059C
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.0 10.0.0.1 13 0x80000003 0x00D8AF
----------------------------------------------------------
r1#sh ip ospf database
192.168.1.0 10.0.0.1 13 0x80000003 0x00D8AF
----------------------------------------------------------
r1#sh ip ospf database
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 52 0x80000005 0x003C6E 2
10.0.0.2 10.0.0.2 46 0x80000005 0x002D7C 2
10.0.0.1 10.0.0.1 52 0x80000005 0x003C6E 2
10.0.0.2 10.0.0.2 46 0x80000005 0x002D7C 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.0.0 10.0.0.1 268 0x80000001 0x00D84F
4.4.1.1 10.0.0.1 268 0x80000001 0x00C362
192.168.1.4 10.0.0.1 272 0x80000004 0x00368C
----------------------------------------------------------
r2(config)# ip prefix-list deny_4.4.0.0 seq 10 deny 4.4.0.0/24
r2(config)# ip prefix-list deny_4.4.0.0 seq 20 permit 0.0.0.0/0 le 32
r2(config)#router ospf 100
r2(config-router)# area 0 filter-list prefix deny_4.4.0.0 in
----------------------------------------------------------
r2#sh ip ospf da
4.4.0.0 10.0.0.1 268 0x80000001 0x00D84F
4.4.1.1 10.0.0.1 268 0x80000001 0x00C362
192.168.1.4 10.0.0.1 272 0x80000004 0x00368C
----------------------------------------------------------
r2(config)# ip prefix-list deny_4.4.0.0 seq 10 deny 4.4.0.0/24
r2(config)# ip prefix-list deny_4.4.0.0 seq 20 permit 0.0.0.0/0 le 32
r2(config)#router ospf 100
r2(config-router)# area 0 filter-list prefix deny_4.4.0.0 in
----------------------------------------------------------
r2#sh ip ospf da
OSPF Router with ID (10.0.0.1) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 658 0x80000009 0x003472 2
10.0.0.2 10.0.0.2 653 0x80000007 0x00297E 2
10.0.0.1 10.0.0.1 658 0x80000009 0x003472 2
10.0.0.2 10.0.0.2 653 0x80000007 0x00297E 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.1.1 10.0.0.1 1194 0x80000001 0x00C362
192.168.1.4 10.0.0.1 1198 0x80000004 0x00368C
4.4.1.1 10.0.0.1 1194 0x80000001 0x00C362
192.168.1.4 10.0.0.1 1198 0x80000004 0x00368C
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 1197 0x80000004 0x004FE9 1
10.0.0.4 10.0.0.4 1204 0x80000008 0x00D120 3
10.0.0.1 10.0.0.1 1197 0x80000004 0x004FE9 1
10.0.0.4 10.0.0.4 1204 0x80000008 0x00D120 3
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.6 10.0.0.4 1204 0x80000005 0x00059C
192.168.1.6 10.0.0.4 1204 0x80000005 0x00059C
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.0 10.0.0.1 1199 0x80000003 0x00D8AF
--------------------------------------------------------
r1#sh ip ospf da
192.168.1.0 10.0.0.1 1199 0x80000003 0x00D8AF
--------------------------------------------------------
r1#sh ip ospf da
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 673 0x80000009 0x003472 2
10.0.0.2 10.0.0.2 668 0x80000007 0x00297E 2
10.0.0.1 10.0.0.1 673 0x80000009 0x003472 2
10.0.0.2 10.0.0.2 668 0x80000007 0x00297E 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.1.1 10.0.0.1 1209 0x80000001 0x00C362
192.168.1.4 10.0.0.1 1213 0x80000004 0x00368C
---------------------------------------------------------
r2(config)#router ospf 100
r2(config-router)# area 1 filter-list prefix deny_4.4.0.0 out
---------------------------------------------------------
r2#sh ip ospf database
4.4.1.1 10.0.0.1 1209 0x80000001 0x00C362
192.168.1.4 10.0.0.1 1213 0x80000004 0x00368C
---------------------------------------------------------
r2(config)#router ospf 100
r2(config-router)# area 1 filter-list prefix deny_4.4.0.0 out
---------------------------------------------------------
r2#sh ip ospf database
OSPF Router with ID (10.0.0.1) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 8 0x8000000A 0x003273 2
10.0.0.2 10.0.0.2 15 0x80000009 0x002580 2
10.0.0.1 10.0.0.1 8 0x8000000A 0x003273 2
10.0.0.2 10.0.0.2 15 0x80000009 0x002580 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.1.1 10.0.0.1 5 0x80000001 0x00C362
192.168.1.4 10.0.0.1 9 0x80000005 0x00348D
4.4.1.1 10.0.0.1 5 0x80000001 0x00C362
192.168.1.4 10.0.0.1 9 0x80000005 0x00348D
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 8 0x80000005 0x004DEA 1
10.0.0.4 10.0.0.4 15 0x8000000A 0x00CD22 3
10.0.0.1 10.0.0.1 8 0x80000005 0x004DEA 1
10.0.0.4 10.0.0.4 15 0x8000000A 0x00CD22 3
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.6 10.0.0.4 15 0x80000007 0x00019E
192.168.1.6 10.0.0.4 15 0x80000007 0x00019E
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
192.168.1.0 10.0.0.1 10 0x80000004 0x00D6B0
---------------------------------------------------------------
r1#sh ip ospf database
192.168.1.0 10.0.0.1 10 0x80000004 0x00D6B0
---------------------------------------------------------------
r1#sh ip ospf database
OSPF Router with ID (10.0.0.2) (Process ID 100)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
10.0.0.1 10.0.0.1 72 0x8000000A 0x003273 2
10.0.0.2 10.0.0.2 77 0x80000009 0x002580 2
10.0.0.1 10.0.0.1 72 0x8000000A 0x003273 2
10.0.0.2 10.0.0.2 77 0x80000009 0x002580 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
4.4.1.1 10.0.0.1 69 0x80000001 0x00C362
192.168.1.4 10.0.0.1 73 0x80000005 0x00348D
4.4.1.1 10.0.0.1 69 0x80000001 0x00C362
192.168.1.4 10.0.0.1 73 0x80000005 0x00348D