Juniper Junos OS OSPF Area types
NOTE: All configurations were taken from a lab environment.
Network Topology
Initial Configs
mxA
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lab@mxA> show configuration | display set
set version 20190829.221548_builder.r1052644
set system host-name mxA
set system root-authentication encrypted-password "$1$KI99zGk6$MbYFuBbpLffu9tn2.sI7l1"
set system root-authentication ssh-dsa "ssh-dss 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 configurator@server1.he"
set system login user lab uid 2000
set system login user lab class super-user
set system login user lab authentication encrypted-password "$6$JEnFYM1n$C6pjHzEv3cK/iovqkiJywOgyrmgNnX/U0r3B3kfaeXa4ygKFE1l7De7YsKVbjdJnab3PfylSLmDHjgPVMiilP1"
set system services ssh root-login allow
set system services netconf ssh
set system syslog user * any emergency
set system syslog file messages any notice
set system syslog file messages authorization info
set system syslog file interactive-commands interactive-commands any
set interfaces ge-0/0/0 unit 0 family inet address 172.22.121.1/24
set interfaces ge-0/0/3 unit 0 family inet address 10.0.1.1/24
set interfaces fxp0 unit 0 family inet address 172.25.11.1/24
set interfaces lo0 unit 0 family inet address 172.16.1.1/32
set policy-options policy-statement static-to-ospf term 1 from protocol static
set policy-options policy-statement static-to-ospf term 1 then accept
set routing-options static route 20.20.0.0/24 reject
set routing-options static route 20.20.1.0/24 reject
set routing-options static route 20.20.2.0/24 reject
set routing-options static route 20.20.3.0/24 reject
set routing-options autonomous-system 65512
set protocols ospf area 0.0.0.0 interface lo0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.10 interface ge-0/0/3.0
set protocols ospf export static-to-ospf
lab@mxA>
diffs
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lab@mxA# show | compare
[edit]
- version 20190829.221548_builder.r1052644;
+ protocols {
+ ospf {
+ area 0.0.0.0 {
+ interface lo0.0;
+ interface ge-0/0/0.0;
+ }
+ area 0.0.0.10 {
+ interface ge-0/0/3.0;
+ }
+ export static-to-ospf;
+ }
+ }
[edit]
lab@mxA#
mxB
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lab@mxB> show configuration | display set
set version 20190829.221548_builder.r1052644
set system host-name mxB
set system root-authentication encrypted-password "$1$KI99zGk6$MbYFuBbpLffu9tn2.sI7l1"
set system root-authentication ssh-dsa "ssh-dss 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 configurator@server1.he"
set system login user lab uid 2000
set system login user lab class super-user
set system login user lab authentication encrypted-password "$6$JEnFYM1n$C6pjHzEv3cK/iovqkiJywOgyrmgNnX/U0r3B3kfaeXa4ygKFE1l7De7YsKVbjdJnab3PfylSLmDHjgPVMiilP1"
set system services ssh root-login allow
set system services netconf ssh
set system syslog user * any emergency
set system syslog file messages any notice
set system syslog file messages authorization info
set system syslog file interactive-commands interactive-commands any
set interfaces ge-0/0/0 unit 0 family inet address 172.22.121.2/24
set interfaces ge-0/0/1 unit 0 family inet address 172.22.122.2/24
set interfaces fxp0 unit 0 family inet address 172.25.11.2/24
set interfaces lo0 unit 0 family inet address 172.31.100.1/32
set protocols ospf area 0.0.0.0 interface lo0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
lab@mxB>
diffs
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mxC
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lab@mxC> show configuration | display set
set version 20190829.221548_builder.r1052644
set system host-name mxC
set system root-authentication encrypted-password "$1$KI99zGk6$MbYFuBbpLffu9tn2.sI7l1"
set system root-authentication ssh-dsa "ssh-dss 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 configurator@server1.he"
set system login user lab uid 2000
set system login user lab class super-user
set system login user lab authentication encrypted-password "$6$JEnFYM1n$C6pjHzEv3cK/iovqkiJywOgyrmgNnX/U0r3B3kfaeXa4ygKFE1l7De7YsKVbjdJnab3PfylSLmDHjgPVMiilP1"
set system services ssh root-login allow
set system services netconf ssh
set system syslog user * any emergency
set system syslog file messages any notice
set system syslog file messages authorization info
set system syslog file interactive-commands interactive-commands any
set interfaces ge-0/0/0 unit 0 family inet address 172.22.122.1/24
set interfaces ge-0/0/3 unit 0 family inet address 10.0.2.1/24
set interfaces fxp0 unit 0 family inet address 172.25.11.3/24
set interfaces lo0 unit 0 family inet address 172.16.2.1/32
set policy-options policy-statement static-to-ospf term 1 from protocol static
set policy-options policy-statement static-to-ospf term 1 then accept
set routing-options static route 20.20.4.0/24 reject
set routing-options static route 20.20.5.0/24 reject
set routing-options static route 20.20.6.0/24 reject
set routing-options static route 20.20.7.0/24 reject
set routing-options autonomous-system 65512
set protocols ospf area 0.0.0.0 interface lo0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.20 interface ge-0/0/3.0
set protocols ospf export static-to-ospf
diffs
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lab@mxC>
lab@mxC# show | compare
[edit]
- version 20190829.221548_builder.r1052644;
+ protocols {
+ ospf {
+ area 0.0.0.0 {
+ interface lo0.0;
+ interface ge-0/0/0.0;
+ }
+ area 0.0.0.20 {
+ interface ge-0/0/3.0;
+ }
+ export static-to-ospf;
+ }
+ }
[edit]
lab@mxC#
mxD
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lab@mxD> show configuration | display set
set version 20190829.221548_builder.r1052644
set system host-name mxD
set system root-authentication encrypted-password "$1$KI99zGk6$MbYFuBbpLffu9tn2.sI7l1"
set system root-authentication ssh-dsa "ssh-dss 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 configurator@server1.he"
set system login user lab uid 2000
set system login user lab class super-user
set system login user lab authentication encrypted-password "$6$JEnFYM1n$C6pjHzEv3cK/iovqkiJywOgyrmgNnX/U0r3B3kfaeXa4ygKFE1l7De7YsKVbjdJnab3PfylSLmDHjgPVMiilP1"
set system services ssh root-login allow
set system services netconf ssh
set system syslog user * any emergency
set system syslog file messages any notice
set system syslog file messages authorization info
set system syslog file interactive-commands interactive-commands any
set logical-systems R3-1 interfaces ge-0/0/1 unit 0 family inet address 10.0.1.2/24
set logical-systems R3-1 interfaces lo0 unit 1 family inet address 172.16.1.2/32
set logical-systems R3-1 protocols ospf area 0.0.0.10 interface ge-0/0/1.0
set logical-systems R3-1 protocols ospf area 0.0.0.10 interface lo0.1
set logical-systems R3-1 routing-options autonomous-system 65512
set logical-systems R3-2 interfaces ge-0/0/4 unit 0 family inet address 10.0.2.2/24
set logical-systems R3-2 interfaces lo0 unit 2 family inet address 172.16.2.2/32
set logical-systems R3-2 protocols ospf area 0.0.0.20 interface ge-0/0/4.0
set logical-systems R3-2 protocols ospf area 0.0.0.20 interface lo0.2
set logical-systems R3-2 routing-options autonomous-system 65512
set interfaces fxp0 unit 0 family inet address 172.25.11.4/24
lab@mxD>
diffs
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lab@mxD# show | compare
[edit]
- version 20190829.221548_builder.r1052644;
[edit logical-systems R3-1]
+ protocols {
+ ospf {
+ area 0.0.0.10 {
+ interface ge-0/0/1.0;
+ interface lo0.1;
+ }
+ }
+ }
[edit logical-systems R3-2]
+ protocols {
+ ospf {
+ area 0.0.0.20 {
+ interface ge-0/0/4.0;
+ interface lo0.2;
+ }
+ }
+ }
[edit]
lab@mxD#
Verification of OSPF adjacencies
mxA <> mxD:R3-1 (OSPF area 10)
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lab@mxA> show ospf neighbor 10.0.1.2
Address Interface State ID Pri Dead
10.0.1.2 ge-0/0/3.0 Full 172.16.1.2 128 34
OSPF LSAs that mxA is generating
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lab@mxA> show ospf database area 10 advertising-router 172.16.1.1
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.1.1 172.16.1.1 0x80000003 114 0x22 0xa3f3 36
Summary *172.16.1.1 172.16.1.1 0x80000002 124 0x22 0x4d71 28
Summary *172.22.121.0 172.16.1.1 0x80000003 113 0x22 0xe955 28
Summary *172.22.122.0 172.16.1.1 0x80000001 113 0x22 0xec52 28
Summary *172.31.100.1 172.16.1.1 0x80000001 113 0x22 0x5fec 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *20.20.0.0 172.16.1.1 0x80000001 128 0x22 0x6b60 36
Extern *20.20.1.0 172.16.1.1 0x80000001 128 0x22 0x606a 36
Extern *20.20.2.0 172.16.1.1 0x80000001 128 0x22 0x5574 36
Extern *20.20.3.0 172.16.1.1 0x80000001 128 0x22 0x4a7e 36
lab@mxA>
mxB <> mxA (OSPF area 0)
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lab@mxB> show ospf neighbor 172.22.121.1
Address Interface State ID Pri Dead
172.22.121.1 ge-0/0/0.0 Full 172.16.1.1 128 38
lab@mxB>
mxC (to OSPF Area 0 & to OSPF Area 20)
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lab@mxC> show ospf neighbor
Address Interface State ID Pri Dead
172.22.122.2 ge-0/0/0.0 Full 172.31.100.1 128 38
10.0.2.2 ge-0/0/3.0 Full 172.16.2.2 128 31
lab@mxC>
OSPF LSAs that mxC is generating
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lab@mxC> show ospf database advertising-router 172.16.2.1
OSPF database, Area 0.0.0.0
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.2.1 172.16.2.1 0x80000004 167 0x22 0xea75 48
Summary *10.0.2.0 172.16.2.1 0x80000003 192 0x22 0x501e 28
Summary *172.16.2.2 172.16.2.1 0x80000001 192 0x22 0x3d7e 28
OSPF database, Area 0.0.0.20
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.2.1 172.16.2.1 0x80000003 193 0x22 0xa7eb 36
Summary *10.0.1.0 172.16.2.1 0x80000001 192 0x22 0x73fb 28
Summary *172.16.1.1 172.16.2.1 0x80000001 192 0x22 0x5c60 28
Summary *172.16.1.2 172.16.2.1 0x80000001 192 0x22 0x5c5e 28
Summary *172.16.2.1 172.16.2.1 0x80000002 202 0x22 0x3b81 28
Summary *172.22.121.0 172.16.2.1 0x80000001 192 0x22 0xf04e 28
Summary *172.22.122.0 172.16.2.1 0x80000003 192 0x22 0xd765 28
Summary *172.31.100.1 172.16.2.1 0x80000001 192 0x22 0x58f2 28
ASBRSum *172.16.1.1 172.16.2.1 0x80000001 192 0x22 0x4e6d 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *20.20.4.0 172.16.2.1 0x80000001 207 0x22 0x388e 36
Extern *20.20.5.0 172.16.2.1 0x80000001 207 0x22 0x2d98 36
Extern *20.20.6.0 172.16.2.1 0x80000001 207 0x22 0x22a2 36
Extern *20.20.7.0 172.16.2.1 0x80000001 207 0x22 0x17ac 36
lab@mxC>
OSPF Stub Areas
Before
outputs
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lab@mxD:R3-1> show route 20.20/16
inet.0: 19 destinations, 19 routes (19 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
20.20.0.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.1.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.2.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.3.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.4.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.5.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.6.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.7.0/24 *[OSPF/150] 00:02:35, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
lab@mxD:R3-1>
lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000003 291 0x22 0xa3f3 36
Router *172.16.1.2 172.16.1.2 0x80000004 290 0x22 0x596d 48
Network *10.0.1.2 172.16.1.2 0x80000001 290 0x22 0xf5f8 32
Summary 10.0.2.0 172.16.1.1 0x80000001 289 0x22 0x6fff 28
Summary 172.16.1.1 172.16.1.1 0x80000002 299 0x22 0x4d71 28
Summary 172.16.2.1 172.16.1.1 0x80000001 289 0x22 0x5864 28
Summary 172.16.2.2 172.16.1.1 0x80000001 289 0x22 0x5862 28
Summary 172.22.121.0 172.16.1.1 0x80000003 289 0x22 0xe955 28
Summary 172.22.122.0 172.16.1.1 0x80000001 289 0x22 0xec52 28
Summary 172.31.100.1 172.16.1.1 0x80000001 289 0x22 0x5fec 28
ASBRSum 172.16.2.1 172.16.1.1 0x80000001 289 0x22 0x4a71 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000001 304 0x22 0x6b60 36
Extern 20.20.1.0 172.16.1.1 0x80000001 304 0x22 0x606a 36
Extern 20.20.2.0 172.16.1.1 0x80000001 304 0x22 0x5574 36
Extern 20.20.3.0 172.16.1.1 0x80000001 304 0x22 0x4a7e 36
Extern 20.20.4.0 172.16.2.1 0x80000001 354 0x22 0x388e 36
Extern 20.20.5.0 172.16.2.1 0x80000001 354 0x22 0x2d98 36
Extern 20.20.6.0 172.16.2.1 0x80000001 354 0x22 0x22a2 36
Extern 20.20.7.0 172.16.2.1 0x80000001 354 0x22 0x17ac 36
lab@mxD:R3-1>
Configuration
set protocols ospf area 10 stub
Outputs on mxA & mxD:R3-1
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configure
set protocols ospf area 10 stub
commit and-quit
lab@mxA> configure
Entering configuration mode
[edit]
lab@mxA# edit protocols ospf
[edit protocols ospf]
lab@mxA# set area 10 stub
[edit protocols ospf]
lab@mxA# commit
commit complete
[edit protocols ospf]
lab@mxA#
lab@mxD:R3-1> configure
Entering configuration mode
[edit]
lab@mxD:R3-1# edit protocols ospf
[edit protocols ospf]
lab@mxD:R3-1# set area 10 stub
[edit protocols ospf]
lab@mxD:R3-1# commit
commit complete
[edit protocols ospf]
lab@mxD:R3-1#
OSPF came UP between Routers in Area 10. OSPF Stub configuration is working properly
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lab@mxD:R3-1# run show ospf neighbor
Address Interface State ID Pri Dead
10.0.1.1 ge-0/0/1.0 Full 172.16.1.1 128 39
[edit protocols ospf]
lab@mxD:R3-1#
lab@mxA# run show ospf neighbor
Address Interface State ID Pri Dead
172.22.121.2 ge-0/0/0.0 Full 172.31.100.1 128 38
10.0.1.2 ge-0/0/3.0 Full 172.16.1.2 128 32
[edit protocols ospf]
lab@mxA#
After
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lab@mxD:R3-1> show route 20.20/16
lab@mxD:R3-1>
lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000003 25 0x20 0xbbdf 36
Router *172.16.1.2 172.16.1.2 0x80000003 24 0x20 0x7950 48
Network *10.0.1.2 172.16.1.2 0x80000001 24 0x20 0x14dc 32
Summary 10.0.2.0 172.16.1.1 0x80000001 65 0x20 0x8de3 28
Summary 172.16.1.1 172.16.1.1 0x80000001 65 0x20 0x6d54 28
Summary 172.16.2.1 172.16.1.1 0x80000001 65 0x20 0x7648 28
Summary 172.16.2.2 172.16.1.1 0x80000001 65 0x20 0x7646 28
Summary 172.22.121.0 172.16.1.1 0x80000001 65 0x20 0xc37 28
Summary 172.22.122.0 172.16.1.1 0x80000001 65 0x20 0xb36 28
Summary 172.31.100.1 172.16.1.1 0x80000001 65 0x20 0x7dd0 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000001 417 0x22 0x6b60 36
Extern 20.20.1.0 172.16.1.1 0x80000001 417 0x22 0x606a 36
Extern 20.20.2.0 172.16.1.1 0x80000001 417 0x22 0x5574 36
Extern 20.20.3.0 172.16.1.1 0x80000001 417 0x22 0x4a7e 36
Extern 20.20.4.0 172.16.2.1 0x80000001 467 0x22 0x388e 36
Extern 20.20.5.0 172.16.2.1 0x80000001 467 0x22 0x2d98 36
Extern 20.20.6.0 172.16.2.1 0x80000001 467 0x22 0x22a2 36
Extern 20.20.7.0 172.16.2.1 0x80000001 467 0x22 0x17ac 36
lab@mxD:R3-1>
OSPF No Summaries Areas (Totally Stub)
Before
outputs
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lab@mxA> show ospf database
OSPF database, Area 0.0.0.0
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.1.1 172.16.1.1 0x80000005 85 0x22 0xcf94 48
Router 172.16.2.1 172.16.2.1 0x80000004 1283 0x22 0xea75 48
Router 172.31.100.1 172.31.100.1 0x80000023 1265 0x22 0x2a38 60
Network 172.22.121.2 172.31.100.1 0x80000001 1265 0x22 0x409a 32
Network 172.22.122.2 172.31.100.1 0x80000002 96 0x22 0x4097 32
Summary *10.0.1.0 172.16.1.1 0x80000005 880 0x22 0x5e10 28
Summary 10.0.2.0 172.16.2.1 0x80000003 1307 0x22 0x501e 28
Summary *172.16.1.2 172.16.1.1 0x80000001 880 0x22 0x4f6e 28
Summary 172.16.2.2 172.16.2.1 0x80000001 1307 0x22 0x3d7e 28
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.1.1 172.16.1.1 0x80000003 880 0x20 0xbbdf 36
Router 172.16.1.2 172.16.1.2 0x80000003 881 0x20 0x7950 48
Network 10.0.1.2 172.16.1.2 0x80000001 881 0x20 0x14dc 32
Summary *10.0.2.0 172.16.1.1 0x80000001 920 0x20 0x8de3 28
Summary *172.16.1.1 172.16.1.1 0x80000001 920 0x20 0x6d54 28
Summary *172.16.2.1 172.16.1.1 0x80000001 920 0x20 0x7648 28
Summary *172.16.2.2 172.16.1.1 0x80000001 920 0x20 0x7646 28
Summary *172.22.121.0 172.16.1.1 0x80000001 920 0x20 0xc37 28
Summary *172.22.122.0 172.16.1.1 0x80000001 920 0x20 0xb36 28
Summary *172.31.100.1 172.16.1.1 0x80000001 920 0x20 0x7dd0 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *20.20.0.0 172.16.1.1 0x80000002 801 0x22 0x6961 36
Extern *20.20.1.0 172.16.1.1 0x80000002 630 0x22 0x5e6b 36
Extern *20.20.2.0 172.16.1.1 0x80000002 459 0x22 0x5375 36
Extern *20.20.3.0 172.16.1.1 0x80000002 287 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 850 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 677 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 504 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 331 0x22 0x15ad 36
lab@mxA>
lab@mxD:R3-1> show route
inet.0: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.1.0/24 *[Direct/0] 23:32:50
> via ge-0/0/1.0
10.0.1.2/32 *[Local/0] 23:32:50
Local via ge-0/0/1.0
10.0.2.0/24 *[OSPF/10] 00:00:05, metric 4
> to 10.0.1.1 via ge-0/0/1.0
172.16.1.1/32 *[OSPF/10] 00:00:05, metric 1
> to 10.0.1.1 via ge-0/0/1.0
172.16.1.2/32 *[Direct/0] 23:33:09
> via lo0.1
172.16.2.1/32 *[OSPF/10] 00:00:05, metric 3
> to 10.0.1.1 via ge-0/0/1.0
172.16.2.2/32 *[OSPF/10] 00:00:05, metric 4
> to 10.0.1.1 via ge-0/0/1.0
172.22.121.0/24 *[OSPF/10] 00:00:05, metric 2
> to 10.0.1.1 via ge-0/0/1.0
172.22.122.0/24 *[OSPF/10] 00:00:05, metric 3
> to 10.0.1.1 via ge-0/0/1.0
172.31.100.1/32 *[OSPF/10] 00:00:05, metric 2
> to 10.0.1.1 via ge-0/0/1.0
224.0.0.5/32 *[OSPF/10] 00:27:47, metric 1
MultiRecv
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 23:33:12
MultiRecv
lab@mxD:R3-1>
Configuration
set protocols ospf area 10 stub no-summaries
outputs
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lab@mxA> configure
Entering configuration mode
[edit]
lab@mxA# set protocols ospf area 10 stub no-summaries
[edit]
lab@mxA# show | compare
[edit protocols ospf area 0.0.0.10 stub]
+ no-summaries;
[edit]
lab@mxA# commit and-quit
commit complete
Exiting configuration mode
lab@mxA>
After
outputs
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lab@mxA> show ospf database
OSPF database, Area 0.0.0.0
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.1.1 172.16.1.1 0x80000005 162 0x22 0xcf94 48
Router 172.16.2.1 172.16.2.1 0x80000004 1360 0x22 0xea75 48
Router 172.31.100.1 172.31.100.1 0x80000023 1342 0x22 0x2a38 60
Network 172.22.121.2 172.31.100.1 0x80000001 1342 0x22 0x409a 32
Network 172.22.122.2 172.31.100.1 0x80000002 173 0x22 0x4097 32
Summary *10.0.1.0 172.16.1.1 0x80000006 30 0x22 0x5c11 28
Summary 10.0.2.0 172.16.2.1 0x80000003 1384 0x22 0x501e 28
Summary *172.16.1.2 172.16.1.1 0x80000002 30 0x22 0x4d6f 28
Summary 172.16.2.2 172.16.2.1 0x80000001 1384 0x22 0x3d7e 28
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *172.16.1.1 172.16.1.1 0x80000005 30 0x20 0xb7e1 36
Router 172.16.1.2 172.16.1.2 0x80000005 31 0x20 0x7552 48
Network 10.0.1.2 172.16.1.2 0x80000003 31 0x20 0x10de 32
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *20.20.0.0 172.16.1.1 0x80000002 878 0x22 0x6961 36
Extern *20.20.1.0 172.16.1.1 0x80000002 707 0x22 0x5e6b 36
Extern *20.20.2.0 172.16.1.1 0x80000002 536 0x22 0x5375 36
Extern *20.20.3.0 172.16.1.1 0x80000002 364 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 927 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 754 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 581 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 408 0x22 0x15ad 36
lab@mxA>
lab@mxD:R3-1> show route
inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.1.0/24 *[Direct/0] 23:32:19
> via ge-0/0/1.0
10.0.1.2/32 *[Local/0] 23:32:19
Local via ge-0/0/1.0
172.16.1.2/32 *[Direct/0] 23:32:38
> via lo0.1
224.0.0.5/32 *[OSPF/10] 00:27:16, metric 1
MultiRecv
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 23:32:41
MultiRecv
lab@mxD:R3-1>
Advertising Default Route in Totally Stub Area
Before
outputs
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lab@mxD:R3-1> show route
inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.1.0/24 *[Direct/0] 23:33:43
> via ge-0/0/1.0
10.0.1.2/32 *[Local/0] 23:33:43
Local via ge-0/0/1.0
172.16.1.2/32 *[Direct/0] 23:34:02
> via lo0.1
224.0.0.5/32 *[OSPF/10] 00:28:40, metric 1
MultiRecv
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 23:34:05
MultiRecv
lab@mxD:R3-1>
lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000009 50 0x20 0xafe5 36
Router *172.16.1.2 172.16.1.2 0x80000009 49 0x20 0x6d56 48
Network *10.0.1.2 172.16.1.2 0x80000007 49 0x20 0x8e2 32
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000001 1659 0x22 0x6b60 36
Extern 20.20.1.0 172.16.1.1 0x80000001 1659 0x22 0x606a 36
Extern 20.20.2.0 172.16.1.1 0x80000001 1659 0x22 0x5574 36
Extern 20.20.3.0 172.16.1.1 0x80000001 1659 0x22 0x4a7e 36
Extern 20.20.4.0 172.16.2.1 0x80000001 1709 0x22 0x388e 36
Extern 20.20.5.0 172.16.2.1 0x80000001 1709 0x22 0x2d98 36
Extern 20.20.6.0 172.16.2.1 0x80000001 1709 0x22 0x22a2 36
Extern 20.20.7.0 172.16.2.1 0x80000001 1709 0x22 0x17ac 36
lab@mxD:R3-1>
lab@mxD:R3-1> ping 172.16.2.2 count 5
PING 172.16.2.2 (172.16.2.2): 56 data bytes
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
--- 172.16.2.2 ping statistics ---
5 packets transmitted, 0 packets received, 100% packet loss
lab@mxD:R3-1>
Configuration
set protocols ospf area 10 stub default-metric 10
outputs
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[edit]
lab@mxA# set protocols ospf area 10 stub default-metric 10
[edit]
lab@mxA# show | compare
[edit protocols ospf area 0.0.0.10 stub]
+ default-metric 10;
[edit]
lab@mxA# commit and-quit
commit complete
Exiting configuration mode
lab@mxA>
After
outputs
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lab@mxD:R3-1> show route
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0.0.0.0/0 *[OSPF/10] 00:00:18, metric 11
> to 10.0.1.1 via ge-0/0/1.0
10.0.1.0/24 *[Direct/0] 23:36:02
> via ge-0/0/1.0
10.0.1.2/32 *[Local/0] 23:36:02
Local via ge-0/0/1.0
172.16.1.2/32 *[Direct/0] 23:36:21
> via lo0.1
224.0.0.5/32 *[OSPF/10] 00:30:59, metric 1
MultiRecv
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 23:36:24
MultiRecv
lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000009 149 0x20 0xafe5 36
Router *172.16.1.2 172.16.1.2 0x80000009 148 0x20 0x6d56 48
Network *10.0.1.2 172.16.1.2 0x80000007 148 0x20 0x8e2 32
Summary 0.0.0.0 172.16.1.1 0x80000001 25 0x20 0x6c0a 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000001 1758 0x22 0x6b60 36
Extern 20.20.1.0 172.16.1.1 0x80000001 1758 0x22 0x606a 36
Extern 20.20.2.0 172.16.1.1 0x80000001 1758 0x22 0x5574 36
Extern 20.20.3.0 172.16.1.1 0x80000001 1758 0x22 0x4a7e 36
Extern 20.20.4.0 172.16.2.1 0x80000001 1808 0x22 0x388e 36
Extern 20.20.5.0 172.16.2.1 0x80000001 1808 0x22 0x2d98 36
Extern 20.20.6.0 172.16.2.1 0x80000001 1808 0x22 0x22a2 36
Extern 20.20.7.0 172.16.2.1 0x80000001 1808 0x22 0x17ac 36
lab@mxD:R3-1>
lab@mxD:R3-1> ping 172.16.2.2 count 5
PING 172.16.2.2 (172.16.2.2): 56 data bytes
64 bytes from 172.16.2.2: icmp_seq=0 ttl=61 time=4.022 ms
64 bytes from 172.16.2.2: icmp_seq=1 ttl=61 time=3.244 ms
64 bytes from 172.16.2.2: icmp_seq=2 ttl=61 time=3.799 ms
64 bytes from 172.16.2.2: icmp_seq=3 ttl=61 time=3.825 ms
64 bytes from 172.16.2.2: icmp_seq=4 ttl=61 time=3.597 ms
--- 172.16.2.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 3.244/3.697/4.022/0.264 ms
lab@mxD:R3-1>
OSPF Not-So-stubby-Areas (NSSA)
Before
outputs
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lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000004 10 0x22 0xa1f4 36
Router *172.16.1.2 172.16.1.2 0x80000003 9 0x22 0x5b6c 48
Network *10.0.1.2 172.16.1.2 0x80000001 9 0x22 0xf5f8 32
Summary 10.0.2.0 172.16.1.1 0x80000001 54 0x22 0x6fff 28
Summary 172.16.1.1 172.16.1.1 0x80000001 54 0x22 0x4f70 28
Summary 172.16.2.1 172.16.1.1 0x80000001 54 0x22 0x5864 28
Summary 172.16.2.2 172.16.1.1 0x80000001 54 0x22 0x5862 28
Summary 172.22.121.0 172.16.1.1 0x80000001 54 0x22 0xed53 28
Summary 172.22.122.0 172.16.1.1 0x80000001 54 0x22 0xec52 28
Summary 172.31.100.1 172.16.1.1 0x80000001 54 0x22 0x5fec 28
ASBRSum 172.16.2.1 172.16.1.1 0x80000001 54 0x22 0x4a71 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000003 117 0x22 0x6762 36
Extern 20.20.1.0 172.16.1.1 0x80000002 1327 0x22 0x5e6b 36
Extern 20.20.2.0 172.16.1.1 0x80000002 1156 0x22 0x5375 36
Extern 20.20.3.0 172.16.1.1 0x80000002 984 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 1547 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 1374 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 1201 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 1028 0x22 0x15ad 36
lab@mxD:R3-1>
lab@mxD:R3-1> show route 20.20/16
inet.0: 19 destinations, 19 routes (19 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
20.20.0.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.1.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.2.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.3.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.4.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.5.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.6.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.7.0/24 *[OSPF/150] 00:00:32, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
lab@mxD:R3-1>
Configuration
set protocols ospf area 10 nssa
outputs
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5
6
7
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9
[edit]
lab@mxA# set protocols ospf area 10 nssa
[edit]
lab@mxA# commit and-quit
commit complete
Exiting configuration mode
lab@mxA>
After
outputs
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lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000003 385 0x20 0xc1d7 36
Router *172.16.1.2 172.16.1.2 0x80000003 384 0x20 0x7950 48
Network *10.0.1.2 172.16.1.2 0x80000001 384 0x20 0x14dc 32
Summary 10.0.2.0 172.16.1.1 0x80000001 426 0x20 0x8de3 28
Summary 172.16.1.1 172.16.1.1 0x80000001 426 0x20 0x6d54 28
Summary 172.16.2.1 172.16.1.1 0x80000001 426 0x20 0x7648 28
Summary 172.16.2.2 172.16.1.1 0x80000001 426 0x20 0x7646 28
Summary 172.22.121.0 172.16.1.1 0x80000001 426 0x20 0xc37 28
Summary 172.22.122.0 172.16.1.1 0x80000001 426 0x20 0xb36 28
Summary 172.31.100.1 172.16.1.1 0x80000001 426 0x20 0x7dd0 28
NSSA 20.20.0.0 172.16.1.1 0x80000001 426 0x20 0x6d5e 36
NSSA 20.20.1.0 172.16.1.1 0x80000001 426 0x20 0x6268 36
NSSA 20.20.2.0 172.16.1.1 0x80000001 426 0x20 0x5772 36
NSSA 20.20.3.0 172.16.1.1 0x80000001 426 0x20 0x4c7c 36
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000003 631 0x22 0x6762 36
Extern 20.20.1.0 172.16.1.1 0x80000002 1841 0x22 0x5e6b 36
Extern 20.20.2.0 172.16.1.1 0x80000002 1670 0x22 0x5375 36
Extern 20.20.3.0 172.16.1.1 0x80000002 1498 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 2061 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 1888 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 1715 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 1542 0x22 0x15ad 36
lab@mxD:R3-1>
lab@mxD:R3-1> show route 20.20/16
inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
20.20.0.0/24 *[OSPF/150] 00:06:30, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.1.0/24 *[OSPF/150] 00:06:30, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.2.0/24 *[OSPF/150] 00:06:30, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
20.20.3.0/24 *[OSPF/150] 00:06:30, metric 0, tag 0
> to 10.0.1.1 via ge-0/0/1.0
lab@mxD:R3-1>
OSPF NSSA No Summaries (Totally NSSA)
Before
outputs
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5
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7
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lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000003 385 0x20 0xc1d7 36
Router *172.16.1.2 172.16.1.2 0x80000003 384 0x20 0x7950 48
Network *10.0.1.2 172.16.1.2 0x80000001 384 0x20 0x14dc 32
Summary 10.0.2.0 172.16.1.1 0x80000001 426 0x20 0x8de3 28
Summary 172.16.1.1 172.16.1.1 0x80000001 426 0x20 0x6d54 28
Summary 172.16.2.1 172.16.1.1 0x80000001 426 0x20 0x7648 28
Summary 172.16.2.2 172.16.1.1 0x80000001 426 0x20 0x7646 28
Summary 172.22.121.0 172.16.1.1 0x80000001 426 0x20 0xc37 28
Summary 172.22.122.0 172.16.1.1 0x80000001 426 0x20 0xb36 28
Summary 172.31.100.1 172.16.1.1 0x80000001 426 0x20 0x7dd0 28
NSSA 20.20.0.0 172.16.1.1 0x80000001 426 0x20 0x6d5e 36
NSSA 20.20.1.0 172.16.1.1 0x80000001 426 0x20 0x6268 36
NSSA 20.20.2.0 172.16.1.1 0x80000001 426 0x20 0x5772 36
NSSA 20.20.3.0 172.16.1.1 0x80000001 426 0x20 0x4c7c 36
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000003 631 0x22 0x6762 36
Extern 20.20.1.0 172.16.1.1 0x80000002 1841 0x22 0x5e6b 36
Extern 20.20.2.0 172.16.1.1 0x80000002 1670 0x22 0x5375 36
Extern 20.20.3.0 172.16.1.1 0x80000002 1498 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 2061 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 1888 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 1715 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 1542 0x22 0x15ad 36
lab@mxD:R3-1>
Configuration
set protocols ospf area 10 nssa no-summaries
outputs
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Configuration
lab@mxA> configure
Entering configuration mode
[edit]
lab@mxA# set protocols ospf area 10 nssa no-summaries
[edit]
lab@mxA# commit and-quit
commit complete
Exiting configuration mode
lab@mxA>
After
outputs
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lab@mxD:R3-1> show ospf database
OSPF database, Area 0.0.0.10
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.16.1.1 172.16.1.1 0x80000005 68 0x20 0xbdd9 36
Router *172.16.1.2 172.16.1.2 0x80000005 67 0x20 0x7552 48
Network *10.0.1.2 172.16.1.2 0x80000003 67 0x20 0x10de 32
NSSA 20.20.0.0 172.16.1.1 0x80000001 636 0x20 0x6d5e 36
NSSA 20.20.1.0 172.16.1.1 0x80000001 636 0x20 0x6268 36
NSSA 20.20.2.0 172.16.1.1 0x80000001 636 0x20 0x5772 36
NSSA 20.20.3.0 172.16.1.1 0x80000001 636 0x20 0x4c7c 36
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern 20.20.0.0 172.16.1.1 0x80000003 841 0x22 0x6762 36
Extern 20.20.1.0 172.16.1.1 0x80000002 2051 0x22 0x5e6b 36
Extern 20.20.2.0 172.16.1.1 0x80000002 1880 0x22 0x5375 36
Extern 20.20.3.0 172.16.1.1 0x80000002 1708 0x22 0x487f 36
Extern 20.20.4.0 172.16.2.1 0x80000002 2271 0x22 0x368f 36
Extern 20.20.5.0 172.16.2.1 0x80000002 2098 0x22 0x2b99 36
Extern 20.20.6.0 172.16.2.1 0x80000002 1925 0x22 0x20a3 36
Extern 20.20.7.0 172.16.2.1 0x80000002 1752 0x22 0x15ad 36
lab@mxD:R3-1>
outputs
1
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