Quagga Case 1

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http://openmaniak.com/quagga_case1.php

1. CASE PRINCIPLE

In this first case study, we will see a very simple example where the routing is done with only static routes.

2. PICTURE

Functionalities tested:

Interface settings

Static routes

Telnet access

3. CONFIGURATIONS

You must set your Linux system correctly to launch Quagga successfully.
See the Quagga tutorial for assisstance.

LINUX CONFIGURATIONS

Check that the zebra daemon is activated:

#vim /etc/quagga/daemonszebra=yes
bgpd=no
ospfd=no
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.

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-detecthostname Cisco-2651 ip route 10.1.0.0 255.255.0.0 10.1.3.1
ip route 10.200.1.4 255.255.255.255 10.1.4.1
ip route 10.200.1.1 255.255.255.255 10.1.3.1ip route 10.1.0.0/16 10.1.3.2
ip route 10.200.1.4/32 10.1.3.2
ip route 10.200.1.1/32 10.1.1.2line 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_L3hostname quagga-router-bip route 0.0.0.0 0.0.0.0 10.1.1.1ip route 0.0.0.0/0 10.1.4.2line 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

4. SHOW COMMANDS

ROUTING TABLE

Quagga_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>*10.1.3.0/24 is directly connected, eth0C>*10.1.1.0/24 is directly connected, eth1S>*10.1.0.0/16 [1/0] via 10.1.3.2, eth0S>*10.200.1.4/32 [1/0] via 10.1.3.2, eth0S>*10.200.1.1/32 [1/0] via 10.1.1.2, eth1Quagga_A (Linux level)#route -n

Kernel IP routing tableDestinationGatewayGenmaskIndicMetricRefUseIface10.200.1.110.1.1.2255.255.255.255UGH000eth110.200.1.410.1.3.2255.255.255.255UGH000eth010.1.1.00.0.0.0255.255.255.0U000eth110.1.3.00.0.0.0255.255.255.0U000eth010.1.0.010.1.3.2255.255.0.0UG000eth0Cisco-2651#show ip route

Codes: C - connected, S - static, I - IGRP, 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, 5 subnets, 3 masksC  10.1.3.0/24 is directly connected, FastEthernet0/1S  10.1.0.0/16 [1/0] via 10.1.3.1C  10.1.4.0/24 is directly connected, FastEthernet0/0S  10.200.1.1/32 [1/0] via 10.1.3.1S  10.200.1.4/32 [1/0] via 10.1.4.1Quagga_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>*10.200.1.4/32 is directly connected, loC>*127.0.0.0/8 is directly connected, loC>*10.1.4.0/24 is directly connected, eth0S>*0.0.0.0/0 [1/0] via 10.1.4.2, eth0Quagga_B (Linux level)#route -n

Kernel IP routing tableDestinationGatewayGenmaskFlagsMetricRefUseIface10.1.4.00.0.0.0255.255.255.0U000eth00.0.0.010.1.4.20.0.0.0UG000eth03750_L3#show ip route

Codes: C - connected, S - static, I - IGRP, 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 10.1.1.1 to network 0.0.0.0     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC  10.1.1.0/24 is directly connected, Vlan1C  10.200.1.1/32 is directly connected, Loopback1S*0.0.0.0/0 [1/0] via 10.1.1.1
INTERFACES

Quagga_A#show interface eth0

Interface eth0 is up, line protocol detection is disabled index 3 metric 1 mtu 1500 flags: <UP,BROADCAST,RUNNING,MULTICAST> HWaddr: 00:02:11:22:33:44 inet 10.1.3.1/24 broadcast 10.1.3.255 inet6 fe80::201:66ff:1122:3344/64  46 input packets (0 multicast), 5838 bytes, 0 dropped  0 input errors, 0 length, 0 overrun, 0 CRC, 0 frame  0 fifo, 0 missed  251 output packets, 45451 bytes, 0 dropped  0 output errors, 0 aborted, 0 carrier, 0 fifo, 0 heartbeat  0 window, 0 collisionsCisco-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 out
SOFTWARE VERSIONS

Quagga_A#show version

Quagga 0.99.6 ().Copyright 1996-2005 Kunihiro Ishiguro, et al.Cisco-2651#show version

Cisco Internetwork Operating System SoftwareIOS (tm) C2600 Software (C2600-IS-M), Version 12.2(23a), RELEASESOFTWARE (fc2)Copyright (c) 1986-2004 by cisco Systems, Inc.Compiled Tue 30-Mar-04 15:04 by kellmillImage text-base: 0x8000808C, data-base: 0x81118FD4 ROM: System Bootstrap, Version 12.2(6r), RELEASE SOFTWARE (fc1) Cisco-2651 uptime is 1 hour, 21 minutesSystem returned to ROM by reloadSystem image file is "flash:c2600-is-mz.122-23a.bin" cisco 2651 (MPC860) processor (revision 0x00) with 60416K/5120K bytes ofmemory.Processor board ID JAD063356E5 (335158987)M860 processor: part number 0, mask 49Bridging software.X.25 software, Version 3.0.0.2 FastEthernet/IEEE 802.3 interface(s)1 Serial network interface(s)32K bytes of non-volatile configuration memory.16384K bytes of processor board System flash (Read/Write) Configuration register is 0x2102
QUAGGA DAEMONS PROCESSES

Quagga_A (Linux level)#ps -ef | grep quagga

UIDPIDPPIDCSTIMETTYTIMECMDquagga105251011:36?00:00:00/usr/lib/quagga/zebra --daemon
LINUX IP FORWARDING

Quagga_A#show ip forwarding

IP forwarding is onSee explanations about Linux IP forwarding.

Quagga_B#show ip forwarding

IP forwarding is off

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