Quagga Case 3

http://openmaniak.com/quagga_case3.php

1. CASE PRINCIPLE

We will test in this third example a medium difficulty level environment where two routers (Cisco 3750 & Quagga B) are linked together with two OPSF areas, one OSPF area is tagged as stub area.

The Quagga B router and the Cisco 2651 are located in a stub area. They have OPSF intra(O) and inter-area routes (OIA) in their routing tables but no external OSPF route. To route these external OPSF networks like 10.200.1.1 (see next paragraph), there is a default OSPF route to the border router (Quagga A router) on the routers inside area 1.
Quagga A is a border router because it is in area 0 or backbone area and in area 1.

For the purpose of our case study, the 10.200.1.1 static route is redistributed into OSPF on the Quagga A router to "artificially" create an external OPSF network tagged as OE2. Because of the stub area, this network should not be propagated on the Quagga B router and the Cisco 2651.

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2. PICTURE

Functionalities tested:

(click on the web links to have more details about a protocol)

Interface settings
OSPF - backbone area
OSPF - multi area
OSPF - stub area
Static routing
Redistribution - static to OSPF
Telnet access

 
 
 
 
 
 
 

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3. CONFIGURATIONS

You must set your Linux system correctly to launch Quagga successfully.
See the Quagga tutorial for help about this. LINUX CONFIGURATIONS

Check that the zebra and ospfd daemons are activated:

#vim /etc/quagga/daemonszebra=yes
bgpd=no
ospfd=yes
ospf6d=no
ripd=no
ripngd=no
isisd=no

If you changed your daemons file, restart the quagga service:

#vim /etc/init.d/quagga restartStopping Quagga daemons (prio:0): ospfd zebra (bgpd) (ripd) (ripngd) (ospf6=d) (isisd).
Removing all routes made by zebra.
Nothing to flush.
Loading capability module if not yet done.
Starting Quagga daemons (prio:10): zebra ospfd.

Set the Quagga A hostname in the /etc/quagga/vtysh.conf file:

#vim /etc/quagga/vtysh.conf!
! Sample
!
! service integrated-vtysh-config
hostname Quagga_A
username root nopassword
!

Set the Quagga B hostname in the /etc/quagga/vtysh.conf file:

#vim /etc/quagga/vtysh.conf!
! Sample
!
! service integrated-vtysh-config
hostname Quagga_B
username root nopassword
!

Don't forget to activate the ip forwarding on the Quagga A router!
It is not necessary to activate ip forwarding on the Quagga B router because it has only one network interface.

ROUTERS CONFIGURATIONS

CISCO ROUTER 2651 IOS: 12.2-23aQUAGGA ROUTER A 0.99.6interface FastEthernet0/1
  ip address 10.1.3.2 255.255.255.0
  no shutdowninterface eth0
  ip address 10.1.3.1/24
  link-detectinterface FastEthernet0/0
  ip address 10.1.4.2 255.255.255.0
  no shutdowninterface eth1
  ip address 10.1.1.1/24
  link-detectinterface Loopback 1
  ip address 10.200.1.3 255.255.255.255
 interface lo
  ip address 10.200.1.2/32
  link-detecthostname Cisco-2651  ip route 10.200.1.1/32 10.1.1.2router ospf 1
  area 1 stub
  network 10.1.3.0 0.0.0.255 area 1
  network 10.1.4.0 0.0.0.255 area 1
  network 10.200.1.3 0.0.0.0 area 1router ospf
  area 1 stub
  network 10.1.3.0/24 area 1
  network 10.1.1.0/24 area 0
  network 10.200.1.2/32 area 0line vty 0 4
  no loginline vty
  no loginenable secret passwordenable password password
CISCO SWITCH L3 3750 IOS: 12.2-25.SEE2
QUAGGA ROUTER B 0.99.6interface vlan 1
  ip address 10.1.1.2 255.255.255.0
  no shutdowninterface eth0
  ip address 10.1.4.1/24
  link-detectinterface Loopback 1
  ip address 10.200.1.1 255.255.255.255
 interface lo
  ip address 10.200.1.4/32
  link-detecthostname 3750_L3 router ospf 1
 
  network 10.1.1.0 0.0.0.255 area 0
  router ospf
  area 1 stub
  network 10.1.4.0/24 area 1
  network 10.200.1.4/32 area 1line vty 0 4
  no loginline vty 0 4
  no loginenable secret password
 enable password password
 ip routing
ip multicast-routing distributed  SEE THE ENTIRE CONFIGURATION OF THE DEVICES:

Quagga A
Quagga B
Cisco 2651
Cisco 3750 L3


 

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4. SHOW COMMANDS

CISCO 3750 L3 QUAGGA A ROUTER CISCO 2651 QUAGGA B ROUTER CISCO 3750 LAYER 3

3750_L3##show interface vlan 1

Vlan1 is up, line protocol is up Hardware is EtherSVI, address is 0011.2233.4444 (bia 0011.2233.4444) Internet address is 10.1.1.2/24 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,  reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec  2120 packets input, 159981 bytes, 0 no buffer  Received 0 broadcasts (57 IP multicast)  0 runts, 0 giants, 0 throttles  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored  1425 packets output, 139335 bytes, 0 underruns  0 output errors, 0 interface resets  0 output buffer failures, 0 output buffers swapped out3750_L3#show ip route

Codes:C - connected, S - static, R - RIP, M - mobile, B - BGP  D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area  N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2  E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP  i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2  ia - IS-IS inter area, * - candidate default, U - per-user static route  o - ODR, P - periodic downloaded static route   Gateway of last resort is not set    10.0.0.0/8 is variably subnetted, 7 subnets, 2 masksC 10.200.1.1/32 is directly connected, Loopback1C 10.1.1.0/24 is directly connected, Vlan1O 10.200.1.2/32 [110/11] via 10.1.1.1, 01:40:19, Vlan1O IA 10.1.3.0/24 [110/11] via 10.1.1.1, 01:40:19, Vlan1O IA 10.1.4.0/24 [110/12] via 10.1.1.1, 01:40:19, Vlan1O IA 10.200.1.3/32 [110/12] via 10.1.1.1, 01:40:19, Vlan1O IA 10.200.1.4/32 [110/22] via 10.1.1.1, 01:40:19, Vlan13750_L3#show ip ospf interface

Vlan1 is up, line protocol is up Internet Address 10.1.1.2/24, Area 0 Process ID 1, Router ID 10.200.1.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State BDR, Priority 1 Designated Router (ID) 10.200.1.2, Interface address 10.1.1.1 Backup Designated router (ID) 10.200.1.1, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5  oob-resync timeout 40  Hello due in 00:00:07 Supports Link-local Signaling (LLS) 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 10.200.1.2 (Designated Router) Suppress hello for 0 neighbor(s)3750_L3#show ip ospf database

 OSPF Router with ID (10.200.1.1) (Process ID 1)     Router Link States (Area 0)        Link ID ADV RouterAgeSeq#ChecksumLinkcount10.200.1.1 10.200.1.11170x8000001D0x000A481 10.200.1.2 10.200.1.27310x8000001D0x000A482           Net Link States (Area 0)        Link ID ADV RouterAgeSeq#Checksum  10.1.1.1 10.200.1.27310x800000040x00C009            Summary Net Link States (Area 0)        Link ID ADV RouterAgeSeq#Checksum  10.1.3.0 10.200.1.215430x800000080x005E0A  10.1.4.0 10.200.1.27430x800000090x005B0A  10.200.1.3 10.200.1.26230x800000090x00019C  10.200.1.4 10.200.1.29230x8000000A0x005938            Type-5 AS External Link States        Link ID ADV RouterAgeSeq#ChecksumTag 10.200.1.1 10.200.1.27730x80000000x008A730 3750_L3#show ip ospf neighbor

Neighbor IDPriStateDead TimeAddressInterface10.200.1.21FULL/DR00:00:3410.1.1.1Vlan1
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QUAGGA A ROUTER

Quagga_A#show interface description

InterfaceStatusProtocolDescriptioneth0upup eth1upup loupup Quagga_A#show interface eth0

Interface eth0 is up, line protocol is up index 2 metric 1 mtu 1500 flags: <UP,BROADCAST,RUNNING,MULTICAST> HWaddr: 00:02:11:22:33:99 inet 10.1.3.1/24 broadcast 10.1.3.255 inet6 fe80::201:66ff:1122:3399/64  2598 input packets (0 multicast), 213456 bytes, 0 dropped  0 input errors, 0 length, 0 overrun, 0 CRC, 0 frame  0 fifo, 0 missed  2491 output packets, 229815 bytes, 0 dropped  0 output errors, 0 aborted, 0 carrier, 0 fifo, 0 heartbeat  0 window, 0 collisionsQuagga_A (Linux level)#route -n

Kernel IP routing tableDestinationGatewayGenmaskIndicMetricRefUseIface10.200.1.110.1.1.2255.255.255.255UGH000eth110.200.1.310.1.3.2255.255.255.255UGH1100eth010.200.1.410.1.3.2255.255.255.255UGH2100eth010.1.4.010.1.3.2255.255.255.0UG1100eth010.1.1.00.0.0.0255.255.255.0U000eth110.1.3.00.0.0.0255.255.255.0U000eth0Quagga_A#show ip route

Codes:K - kernel route, C - connected, S - static, R - RIP, O - OSPF,  I - ISIS, B - BGP, > - selected route, * - FIB route   C>*127.0.0.0/8 is directly connected, loC>*10.200.1.2/32 is directly connected, loC>*10.1.3.0/24 is directly connected, eth0C>*10.1.1.0/24 is directly connected, eth1S>*10.200.1.1/32 [1/0] via 10.1.1.2, eth1O10.1.1.0/24 [110/10] is directly connected, eth1, 03:30:30O10.1.3.0/24 [110/10] is directly connected, eth0, 03:30:39O10.200.1.2/32 [110/10] is directly connected, lo, 03:30:39O>*10.1.4.0/24 [110/11] via 10.1.3.2, eth0, 03:30:29O>*10.200.1.3/32 [110/11] via 10.1.3.2, eth0, 03:30:29O>*10.200.1.4/32 [110/21] via 10.1.3.2, eth0, 03:30:29Quagga_A#show ip ospf interface

eth0 is up ifindex 2, MTU 1500 bytes, BW 0 Kbit <UP,BROADCAST,RUNNING,MULTICAST> Internet Address 10.1.3.1/24, Broadcast 10.1.3.255, Area 0.0.0.1 [Stub] MTU mismatch detection:enabled Router ID 10.200.1.2, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State Backup, Priority 1 Designated Router (ID) 10.1.4.2, Interface Address 10.1.3.2 Backup Designated Router (ID) 10.200.1.2, Interface Address 10.1.3.1 Multicast group memberships: OSPFAllRouters OSPFDesignatedRouters Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5  Hello due in 6.220s Neighbor Count is 1, Adjacent neighbor count is 1eth1 is up ifindex 3, MTU 1500 bytes, BW 0 Kbit <UP,BROADCAST,RUNNING,MULTICAST> Internet Address 10.1.1.1/24, Broadcast 10.1.1.255, Area 0.0.0.0 MTU mismatch detection:enabled Router ID 10.200.1.2, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 10.200.1.2, Interface Address 10.1.1.1 Backup Designated Router (ID) 10.200.1.1, Interface Address 10.1.1.2 Multicast group memberships: OSPFAllRouters OSPFDesignatedRouters Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5  Hello due in 5.460s Neighbor Count is 1, Adjacent neighbor count is 1lo is up ifindex 1, MTU 16436 bytes, BW 0 Kbit <UP,LOOPBACK,RUNNING> Internet Address 10.200.1.2/32, Area 0.0.0.0 MTU mismatch detection:enabled Router ID 10.200.1.2, Network Type LOOPBACK, Cost: 10 Transmit Delay is 1 sec, State Loopback, Priority 1 No designated router on this network No backup designated router on this network Multicast group memberships: <None> Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5  Hello due in inactive Neighbor Count is 0, Adjacent neighbor count is 0Quagga_A#show ip ospf database

 OSPF Router with ID (10.200.1.2)         Router Link States (Area 0.0.0.0)       Link ID ADV RouterAgeSeq#CkSumLink count10.200.1.1 10.200.1.114960x8000001c0x0c47110.200.1.2 10.200.1.2670x800000100xdfa22         Net Link States (Area 0.0.0.0)       Link ID ADV RouterAgeSeq#CkSum 10.1.1.1 10.200.1.2670x800000040xc009          Summary Link States (Area 0.0.0.0)       Link ID ADV RouterAgeSeq#CkSumRoute10.1.3.0 10.200.1.29090x800000080x5e0a10.1.3.0/2410.1.4.0 10.200.1.2790x800000090x5b0a10.1.4.0/2410.200.1.3 10.200.1.217900x800000080x039b10.200.1.3/3210.200.1.4 10.200.1.22590x8000000a0x593810.200.1.4/32         Router Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSumLink count10.1.4.2 10.1.4.27360x800000100x8742310.200.1.2 10.200.1.2590x8000000c0xe98b110.200.1.4 10.200.1.44700x8000000a0x59272         Net Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSum 10.1.3.2 10.1.4.27360x800000070xea43 10.1.4.2 10.1.4.27360x800000080xf930          Summary Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSumRoute0.0.0.0 10.200.1.21790x800000090xcfb00.0.0.0/010.1.1.0 10.200.1.213090x800000070x94d810.1.1.0/2410.200.1.2 10.200.1.23090x800000090x1f8210.200.1.2/32         AS External Link States       10.200.1.1 10.200.1.21090x800000090x8a73E2 10.200.1.1/32 [0x0]Quagga_A#show ip border-routers

============ OSPF router routing table ============= Quagga_A#show ip neighbor

Neighbor IDPriStateDead TimeAddressInterfaceRXmtLRqstLDBsmL10.200.1.1Full/Backup32.136s10.1.1.2eth1:10.1.1.110010.1.4.21Full/DR36.102s10.1.3.2eth0:10.1.3.1000Quagga_A#show ip ospf route

============ OSPF network routing table ============N10.1.1.0/24[10] area: 0.0.0.0  directly attached to eth1N10.1.3.0/24[10] area: 0.0.0.1  directly attached to eth0N10.1.4.0/24[11] area: 0.0.0.1  via 10.1.3.2, eth0N10.200.1.2/32[10] area: 0.0.0.0  directly attached to loN10.200.1.3/32[11] area: 0.0.0.1  via 10.1.3.2, eth0N10.200.1.4/32[21] area: 0.0.0.1  via 10.1.3.2, eth0   ============ OSPF router routing table =============   ============ OSPF external routing table ===========Quagga_A#show ip forwarding

IP forwarding is onSee explanation about Linux IP forwarding.

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CISCO 2651

Cisco_2651#show ip interface brief

InterfaceIP-AddressOK?MethodStatusProtocolFastEthernet0/010.1.4.2YESNVRAMupupFastEthernet0/110.1.3.2YESNVRAMupupLoopback110.200.1.3YESmanualupupCisco-2651#show interface FastEthernet 0/0

FastEthernet0/0 is up, line protocol is up Hardware is AmdFE, address is 0011.2211.3345 (bia 0011.2211.3345) Internet address is 10.1.4.2/24 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,  reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set
Keepalive set (10 sec) Full-duplex, 100Mb/s, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:01:20, output 00:00:09, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec  477 packets input, 46396 bytes  Received 303 broadcasts, 0 runts, 0 giants, 0 throttles  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored  0 watchdog  0 input packets with dribble condition detected  603 packets output, 58014 bytes, 0 underruns  0 output errors, 0 collisions, 1 interface resets  0 babbles, 0 late collision, 0 deferred  0 lost carrier, 0 no carrier  0 output buffer failures, 0 output buffers swapped outCisco-2651#show ip route

Codes:C - connected, S - static, R - RIP, M - mobile, B - BGP  D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area  N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2  E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP  i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2  ia - IS-IS inter area, * - candidate default, U - per-user static route  o - ODR, P - periodic downloaded static route   Gateway of last resort is 10.1.3.1 to network 0.0.0.0    10.0.0.0/8 is variably subnetted, 6 subnets, 2 masksC 10.1.4.0/24 is directly connected, FastEthernet0/0C 10.1.3.0/24 is directly connected, FastEthernet0/1C 10.200.1.3/32 is directly connected, Loopback1O 10.200.1.4/32 [110/11] via 10.1.4.1, 02:06:38, FastEthernet0/0O IA 10.1.1.0/24 [110/11] via 10.1.3.1, 02:06:38, FastEthernet0/1O IA 10.200.1.2/32 [110/11] via 10.1.3.1, 02:06:38, FastEthernet0/1O*IA0.0.0.0/0 [110/2] via 10.1.3.1, 02:06:40, FastEthernet0/1Cisco-2651#show ip ospf border-routers

OSPF Process 1 internal Routing Table Codes: i - Intra-area route, I - Inter-area route i 10.200.1.2 [1] via 10.1.3.1, FastEthernet0/1, ABR, Area 1, SPF 12Cisco-2651#show ip ospf database

 OSPF Router with ID (10.1.4.2) (Process ID 1)         Router Link States (Area 1)       Link ID ADV RouterAgeSeq#ChecksumLink count10.1.4.2 10.1.4.218000x8000000D0x008D3F310.200.1.2 10.200.1.24140x800000090x00EF88110.200.1.4 10.200.1.48210x800000070x005F242         Net Link States (Area 1)       Link ID ADV RouterAgeSeq#Checksum 10.1.3.2 10.1.4.218000x800000040x00F040 10.1.4.2 10.1.4.218000x800000050x00FF2D          Summary Net Link States (Area 1)       Link ID ADV RouterAgeSeq#Checksum 0.0.0.0 10.200.1.25950x800000060x00D5AD 10.1.1.0 10.200.1.2790x800000040x009AD5 10.200.1.2 10.200.1.217900x800000060x00257F Cisco-2651#show ip ospf interface

Loopback1 is up, line protocol is up Internet Address 10.200.1.3/32, Area 1 Process ID 1, Router ID 10.1.4.2, Network Type LOOPBACK, Cost: 1 Loopback interface is treated as a stub HostFastEthernet0/0 is up, line protocol is up Internet Address 10.1.4.2/24, Area 1 Process ID 1, Router ID 10.1.4.2, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 10.1.4.2, Interface address 10.1.4.2 Backup Designated router (ID) 10.200.1.4, Interface address 10.1.4.1 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5  Hello due in 00:00:02 Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 4 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1  Adjacent with neighbor 10.200.1.4 (Backup Designated Router) Suppress hello for 0 neighbor(s)FastEthernet0/1 is up, line protocol is up Internet Address 10.1.3.2/24, Area 1 Process ID 1, Router ID 10.1.4.2, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 10.1.4.2, Interface address 10.1.3.2 Backup Designated router (ID) 10.200.1.2, Interface address 10.1.3.1 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5  Hello due in 00:00:01 Index 1/1, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 3 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1  Adjacent with neighbor 10.200.1.2 (Backup Designated Router) Suppress hello for 0 neighbor(s) Top of the page     Show Commands Menu

QUAGGA B ROUTER

Quagga_B#show interface description

InterfaceStatusProtocolDescriptioneth0upup loupup Quagga_B#show interface eth0

Interface eth0 is up, line protocol is up index 2 metric 1 mtu 1500 flags: <UP,BROADCAST,RUNNING,MULTICAST> HWaddr: 00:02:11:22:88:88 inet 10.1.4.1/24 broadcast 10.1.4.255 inet6 fe80::201:66ff:1122:8888/64  2598 input packets (0 multicast), 213456 bytes, 0 dropped  0 input errors, 0 length, 0 overrun, 0 CRC, 0 frame  0 fifo, 0 missed  2491 output packets, 229815 bytes, 0 dropped  0 output errors, 0 aborted, 0 carrier, 0 fifo, 0 heartbeat  0 window, 0 collisionsQuagga_B (Linux level)#route -n

Kernel IP routing tableDestinationGatewayGenmaskIndicMetricRefUseIface10.200.1.310.1.4.2255.255.255.255UGH1100eth010.200.1.210.1.4.2255.255.255.255UGH2100eth010.1.4.00.0.0.0255.255.255.0U000eth010.1.1.010.1.4.2255.255.255.0UG2100eth010.1.3.010.1.4.2255.255.255.0UG1100eth00.0.0.010.1.4.20.0.0.0UG1200eth0Quagga_B#show ip route

Codes:K - kernel route, C - connected, S - static, R - RIP, O - OSPF,  I - ISIS, B - BGP, > - selected route, * - FIB route   C>*10.1.4.0/24 is directly connected, eth0C>*10.200.1.4/32 is directly connected, loC>*127.0.0.0/8 is directly connected, loO10.1.4.0/24 [110/10] is directly connected, eth0, 01:04:26O10.200.1.4/32 [110/10] is directly connected, lo, 01:04:26O10.1.1.0/24 [110/21] via 10.1.4.2, eth0, 00:28:00O>*10.1.3.0/24 [110/11] via 10.1.4.2, eth0, 00:52:54O>*10.200.1.2/32 [110/21] via 10.1.4.2, eth0, 00:28:04O>*10.200.1.3/32 [110/11] via 10.1.4.2, eth0, 01:04:17O>*0.0.0.0/0 [110/12] via 10.1.4.2, eth0, 00:28:04Quagga_B#show ip ospf border-routers

============ OSPF router routing table =============R10.200.1.2[11] area: 0.0.0.1, ABR  via 10.1.4.2, eth0Quagga_B#show ip ospf database

 OSPF Router with ID (10.200.1.4)         Router Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSumLink count10.1.4.2 10.1.4.217180x8000000a0x933c310.200.1.2 10.200.1.216900x800000050xf784110.200.1.4 10.200.1.42940x800000040x65212         Net Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSum 10.1.3.2 10.1.4.217180x800000010xf63d 10.1.4.2 10.1.4.218870x800000020x062a          Summary Link States (Area 0.0.0.1 [Stub])       Link ID ADV RouterAgeSeq#CkSumRoute0.0.0.0 10.200.1.21630x800000030xdbaa0.0.0.0/010.1.1.0 10.200.1.217150x800000010xa0d210.1.1.0/2410.200.1.2 10.200.1.21430x800000030x2b7c10.200.1.2/32Quagga_B#show ip ospf route

============ OSPF network routing table ============NIA0.0.0.0/0[12] area: 0.0.0.1   via 10.1.4.2, eth0NIA10.1.1.0/24[21] area: 0.0.0.1   via 10.1.4.2, eth0N 10.1.3.0/24[11] area: 0.0.0.1   via 10.1.4.2, eth0N 10.1.4.0/24[10] area: 0.0.0.1   directly attached to eth0NIA10.200.1.2/32[21] area: 0.0.0.1   via 10.1.4.2, eth0N 10.200.1.3/32[11] area: 0.0.0.1   via 10.1.4.2, eth0N 10.200.1.4/32[10] area: 0.0.0.1   directly attached to lo    ============ OSPF router routing table =============R 10.200.1.2[11] area: 0.0.0.1, ABR   via 10.1.4.2, eth0    ============ OSPF external routing table ===========Quagga_B#show ip ospf neighbor

Neighbor IDPriStateDead TimeAddressInterfaceRXmtLRqstLDBsmL10.1.4.21Full/DR33.812s10.1.4.2eth0:10.1.4.1000Quagga_B#show ip forwarding

IP forwarding is offSee for explanation on Linux IP forwarding.

Quagga_B#show ip ospf interface

eth0 is up ifindex 2, MTU 1500 bytes, BW 0 Kbit <UP,BROADCAST,RUNNING,MULTICAST> Internet Address 10.1.4.1/24, Broadcast 10.1.4.255, Area 0.0.0.1 [Stub] MTU mismatch detection:enabled Router ID 10.200.1.4, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State Backup, Priority 1 Designated Router (ID) 10.1.4.2, Interface Address 10.1.4.2 Backup Designated Router (ID) 10.200.1.4, Interface Address 10.1.4.1 Multicast group memberships: OSPFAllRouters OSPFDesignatedRouters Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5  Hello due in 6.517s Neighbor Count is 1, Adjacent neighbor count is 1lo is up ifindex 1, MTU 16436 bytes, BW 0 Kbit <UP,LOOPBACK,RUNNING> Internet Address 10.200.1.4/32, Area 0.0.0.1 [Stub] MTU mismatch detection:enabled Router ID 10.200.1.4, Network Type LOOPBACK, Cost: 10 Transmit Delay is 1 sec, State Loopback, Priority 1 No designated router on this network No backup designated router on this network Multicast group memberships: <None> Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5  Hello due in inactive Neighbor Count is 0, Adjacent neighbor count is 0Quagga_B#traceroute 10.200.1.1

traceroute to 10.200.1.1 (10.200.1.1), 30 hops max, 40 byte packets 110.1.4.20.918 ms0.960 ms0.951 ms 210.1.3.10.416 ms0.336 ms0.340 ms 310.1.1.20.790 ms*0.834 msTraceroute must be installed on your operational system to be used under the Quagga router. See theQuagga tutorial for help.