1. CISCO router introduction for Labs WAN/ OSPF-RIP
Hervé TREMEUR
AT&T Global Network
AT&T Labs
CISCO Router introduction

2. Agenda Router Quick Start CLI (Command Line Interface)
Routing Protocols
IP Addressing
IP Routing configuration
RIP Routing Protocol configuration
OSPF Routing Protocol configuration
Main Show and Debug commands used
CATALYST 2950 configuration
Lab presentation
Conclusion

3. Router quick start
If an enable password has not been set, enable mode only can be accessed from the router console.
Router> enable
Password:
Router#Disable
Router>Exit
Router> ? <----- User Mode Commands list
Router>en
Router# ? <----- Privileged-Mode command list
Router#Show ?
Router#

4. Command Line Interface
Global Configuration Mode
Router# configure terminal
Router(config)#? --- Global configuration command list
To exit global configuration command mode and return to privileged EXEC mode,
use one of the following commands:
Router(config)# exit
Router(config)# end
Router(config)# Ctrl-Z
Router#
Interface Configuration Mode
Router(config)# interface serial 0/0
Router(config-if)# ? ------Interface configuration command list
Subinterface Configuration SubmodeRouter
Router(config)# encapsulation frame-relay
Router(config)# interface serial 0/0.1
Router(config-subif)#

5. Command Line Interface
Startup configuration recommanded
Router#
conf t
hostname R1
enable password c
no ip domain-lookup
line con 0
exec-timeout 0 0
password c
logging synchronous
line aux 0
line vty 0 4

6. Command Line Interface
Moving Around on the Command Line
Use the following commands to move the cursor around on the command line to make corrections or changes:
Press Ctrl-B : Move the cursor back one character.
Press Ctrl-F : Move the cursor forward one character.
Press Ctrl-A : Move the cursor to the beginning of the command line.
Press Ctrl-E : Move the cursor to the end of the command line.
Press Esc B : Move the cursor back one word.
Press Esc F : Move the cursor forward one word.
Completing a Partial Command Name
Router# conf<Tab>
Router# configure
Recalling Commands
Ctrl-P or the up arrow key  Recall commands.
Ctrl-N or the down arrow key --- Return to more recent commands

7. Routing Protocols Interior Gateway Protocols
Interior protocols are used for routing networks that are under a common network administration. Cisco IOS software supports the following interior routing protocols:
Routing Information Protocol (RIP)
Internet Gateway Routing Protocol (IGRP)
OSPF
IP Enhanced IGRP
Integrated IS-IS

8. Routing Protocols Exterior Gateway Protocols
Exterior protocols are used to exchange routing information between networks that do not share a common administration. IP Exterior Gateway Protocols require the following three sets of information before routing can begin:
A list of neighbor (or peer) routers with which to exchange routing information
A list of networks to advertise as directly reachable
The autonomous system number of the local router
The supported exterior gateway protocol is Border Gateway Protocol (BGP).
Multicast BGP (MBGP) adds capabilities to BGP to enable multicast routing policy throughout the Internet and to connect multicast topologies within and between BGP autonomous systems. That is, MBGP is an enhanced BGP that carries IP multicast routes. BGP carries two sets of routes, one set for unicast routing and one set for multicast routing.

9. IP Addressing Class A Class B Class C Class D Class Eto
Class B to
Class C to
Class D to
Multicast group addresses
Class E to
Assigning IP Addresses to Network Interfaces
ip address ip-address mask < Set a primary IP address for an interface

10. VLSM (Variable length Subnet Mask)
Class B
/ /24
/ /30
/30
/30
………………
/30
I N Hosts I I I
I N Bits in mask I
I Mask i

11. FRAME-RELAY Configuration
Basic Frame-relay configuration (hub/spoke)
Router A#
interface Serial0/0
Ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
frame-relay map ip broadcast
Router B#
interface Serial3/1
Ip address !
interface Serial3/1.1 point-to-point
frame-relay interface-dlci 114

12. RIP Configuration Basic RIP configuration
commands needed for the lab01 are presented
Interface Ethernet0/0
ip address
Router(config)# router rip
Router(config-router)# network < --- specifies what interfaces will receive and send RIP
routing updates. It also specifies what network
will be advertised
router rip
passive-interface Ethernet0/0 < --- disables the sending of RIP updates on interface
distribute-list 1 out Ethernet0/0< --- filter the advertised networks
Router(config)#access-list 1 permit

13. RIP Configuration Monitoring and testing the configuration
Router# debug ip rip < ---- displays received v1 updates
displays sending v1 updates
Router#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, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
U - per-user static route, o - ODR
Gateway of last resort is not set
R /24 [120/1] via , 00:00:22, Ethernet0/0

14. OSPF Configuration Basic OSPF configuration
commands needed for the lab are presented
Basic OSPF configuration
Interface loopback 0
ip address
Interface serial 0/0
ip address
Router(config)# router ospf 64
Router(config-router)# network area 0
Router(config-router)# network area 1

15. OSPF Configuration OSPF Priority “ DR election” configuration
The router A with highest priority on the network will be elected DR
The router B with second highest priority will be elected BDR
RouterA#
Interface Ethernet0/0
ip address
Ip ospf priority 100
router ospf 64
network area 2
Router with priority 0 will not participate to the election
RouterB#
ip address
Ip ospf priority 50

16. OSPF Configuration OSPF on an NBMA Network ” Non-Broadcast ‘” Model
RouterA#
interface Serial3/1
no ip directed-broadcast
encapsulation frame-relay Split horizon is enabled on a frame relay encapsulated
interface if subinterfaces have been configured
no frame-relay inverse-arp
frame-relay lmi-type ansi !
interface Serial3/1.1 point-to-point
ip address
ip ospf network non-broadcast
ip ospf priority 0
frame-relay interface-dlci inform which DLCI goes with which subinterfaces
router ospf 64
network area 2
Split horizon is enabled on a frame relay encapsulated interface if subinterfaces
Have been configured

17. OSPF Configuration OSPF on an NBMA Network ” Broadcast ‘” Model
RouterA#
interface Serial3/1
ip address
no ip directed-broadcast
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
ip ospf network broadcast
ip ospf priority 0
frame-relay map ip broadcast
router ospf 64
network area 2

18. OSPF Configuration
OSPF on an NBMA Network ” Point-to-Multipoint ‘” Model
RouterA#
interface Serial3/1
ip address
no ip directed-broadcast
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
ip ospf network point-to-multipoint
frame-relay map ip broadcast
router ospf 64
network area 2
Changing the encapsulation on a serial interface disables split horizon
Don’t need DR BDR election

19. OSPF Configuration OSPF Interface parameters
Hello interval will vary based on the Interface Network Type :
Broadcast=10
Non-Broadcast =30
Point-to-point=10
Point-to-Multipoint=30
Dead interval will vary based on the Interface Network Type :
Broadcast=40
Non-Broadcast =120
Point-to-point=40
Point-to-Multipoint =30

20. OSPF Configuration OSPF Virtual-Links show ip ospf virtual-link
Needed when area not adjacent to area 0 (backbone area)
Example : area 0---RouterA--area3--RouterB--area4
RouterA#
router ospf 64
area 3 virtual-link
RouterB#
area 3 virtual-link
show ip ospf virtual-link

21. OSPF Configuration OSPF configuration monitoring and testing
Show ip ospf interface
Show ip ospf neighbor
Show ip route
Debug ip ospf events
Debug ip ospf adjacency

22. Route redistribution Redistribute RIP into OSPF
router ospf 1
redistribute rip subnets
Redistribute OSPF to RIP
router rip
redistribute ospf 1 metric 1 route-map OSPF-RIP
route-map OSPF-RIP permit 10
match ip address 2
access-list 2 permit
Redistribute CONNECTED into OSPF
router ospf 1
redistribute connected subnets route-map xxxx

23. Catalyst 2950 configuration
Create VLANA (10) and VLANB(20)
interface FastEthernet0/1
duplex full
speed 100
switchport access vlan 10 !
interface FastEthernet0/2
switchport access vlan 20
Interface VLAN 10
Interface VLAN 20

24. Catalyst 2950 configuration
Check VLAN
interface FastEthernet0/1
TK-VLAN#sh vlan
VLAN Name Status Ports
1 default active Fa0/2, Fa0/3, Fa0/4,
Fa0/6, Fa0/7, Fa0/8,
Fa0/9, Fa0/10, Fa0/11, Fa0/12,
Fa0/13, Fa0/14, Fa0/15, Fa0/16,
Fa0/17, Fa0/18, Fa0/19, Fa0/20,
Fa0/21, Fa0/22, Fa0/23, Fa0/24
10 VLAN active Fa0/1,
VLAN active Fa0/5,

25. Lab EPUNSA presentation
Topology
R1 : ASBR
R2 : ABR
R4 :ABR

26. Lab EPUNSA IP Addressing plan
Name
N bits
Mask
Subnet
Router
N Hosts
Loopback0 32 R1 R2 R3 R4 R5
Frame-relay R6
R2-R4 30 2
R4-R5
VLANA
VLANB
VLANC
VLAND
VLANE