10 Ip Routing

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10.0.0.1/8S0

S110.0.0.2/8

Head Office Branch Office

E0192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

E0

192.168.2.1/24

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Routing

Routing is the process of moving packets from one network to

another network.

Routing involves two basic activities:

Determining best paths.

Forwarding Packets through these paths.

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Head Office Ethernet interface should be in the

same network as your Head office LAN and similarly

on Branch Office side. Show Diagram

Head Office S0 and Branch Office S1 should be in samenetwork. Show Diagram

Head Office LAN and Branch Office LAN should be in

different Network. Show Diagram

All interfaces of Router should be in different network.

Show Diagram

Rules of Routing

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Types of Routing

Static Routing

Default Routing

Dynamic Routing

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Static Routing

It is configured manuallyby Administrator.

It is Secure & fast.

Require Destination Network ID for configuration

Used in Small Networks

Administrative distance for Static Route is 0 and 1.

{Administrative Distance (AD) is the trustworthiness of

the routing information. AD range is 0-255, lesser the

Administrative distance, higher the priority}

i i k i

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Static Routing Network Diagram

E0

192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

10.0.0.1/8S0

S110.0.0.2/8

E0

192.168.2.1/24


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Routing Network Diagram


E0

192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

10.0.0.1/8S0

S110.0.0.2/8

E0

192.168.2.1/24

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E0

192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

10.0.0.1/8S0

S110.0.0.2/8

E0

192.168.2.1/24

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E0

192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

10.0.0.1/8S0

S110.0.0.2/8

E0

192.168.2.1/24

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E0

192.168.1.1/24

LAN - 192.168.1.0/24 LAN 192.168.2.0/24

10.0.0.1/8S0

S110.0.0.2/8

E0

192.168.2.1/24

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exit

exit

Hyderabad(config-if)#

Hyderabad(config)#

telnet 192.168.1.1

================================

Welcome to Hyderabad Router

================================

User Access Verification

password :

****

****

enable

configure terminal

interface serial 0

ip address 10.0.0.1 255.0.0.0

no shut

clockrate 64000

encapsulation hdlc

Hyderabad>

password :

Hyderabad#

Enter configuration commands, one per line. End with CNTL/Z.

Hyderabad(config)#





Microsoft Windows 2000 [Version 5.00.2195]

(C) Copyright 1985-2000 Microsoft Corp.

C:\>

Connecting .....

Hyderabad# Diagram

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exit

exit


Hyderabad(config)#

telnet 192.168.1.1

================================

Welcome to Hyderabad Router

================================


password :

****

****

enable

configure terminal

interface serial 0

ip address 10.0.0.1 255.0.0.0

no shut

clockrate 64000

encapsulation hdlc

Hyderabad>

password :

Hyderabad#


Hyderabad(config)#







C:\>

Connecting .....

Hyderabad# Diagram

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show ip routeyderabad#

Default gateway is not set

Host Gateway Last Use Total Uses Interface

ICMP redirect cache is empty

Hyderabad#


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

C 192.168.1.0/24 is directly connected, Ethernet0

C 10.0.0.0/8 is directly connected, Serial0

Hyderabad#

configure terminal


Hyderabad(config)# ip routing

Hyderabad(config)#

^

Z

Enabling RoutingRouter(config)#ip routing

Diagram

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Hyderabad#










S 192.168.2.0/24 [1/0] via 10.0.0.2


Hyderabad#


Hyderabad(config)#

ip route 192.168.2.0 255.255.255.0 10.0.0.2

Hyderabad(config)#

^

Z

configure terminal

S for Static Routing1 is nothing but

Administrative Distance

Configuring Static Route

Router(config)# ip route

Or


Diagram

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exithennai(config)#

Chennai#

================================

Welcome to Chennai Router

================================


password :

****

****

enable

configure terminal

ip address 10.0.0.2 255.0.0.0

no shut

encapsulation hdlc

exit

Chennai>

password :

Chennai#


Chennai(config)#

Chennai(config-if)#

Chennai(config-if)#

Chennai(config-if)#

Chennai(config-if)#



C:\>

Connecting .....

Chennai#

telnet 192.168.2.1

interface serial 1

Diagram

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exithennai(config)#

Chennai#

================================

Welcome to Chennai Router

================================


password :

****

****

enable

configure terminal

ip address 10.0.0.2 255.0.0.0

no shut

encapsulation hdlc

exit

Chennai>

password :

Chennai#


Chennai(config)#

Chennai(config-if)#

Chennai(config-if)#

Chennai(config-if)#

Chennai(config-if)#



C:\>

Connecting .....

Chennai#

telnet 192.168.2.1

interface serial 1

Diagram

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show ip routehennai#

Default gateway is not set

Host Gateway Last Use Total Uses Interface

ICMP redirect cache is empty

Chennai#











Chennai#

configure terminal


Chennai(config)# ip routing

Chennai(config)#

^

Z

Enabling RoutingRouter(config)#ip routing

Diagram

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Chennai#










S 192.168.1.0 is directly connected, Serial1


Chennai#


Chennai(config)#

ip route 192.168.1.0 255.255.255.0 S1

Chennai(config)#

^

Z

configure terminal

S for Static RoutingIf is directly connectedAdministrative Distance

is 0

Configuring Static Route


Or


Diagram

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Hyderabad#










S 192.168.2.0/24 [1/0] via 10.0.0.2


Hyderabad#


Hyderabad(config)#

ip route 192.168.2.0 255.255.255.0 10.0.0.2

Hyderabad(config)#

^

Z

configure terminal

ping 192.168.2.10

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.2.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms

Hyderabad#

Diagram

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Chennai#










S 192.168.1.0 is directly connected, Serial1


Chennai#


Chennai(config)#

ip route 192.168.1.0 255.255.255.0 S1

Chennai(config)#

^

Z

configure terminal

ping 192.168.1.10

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms

Chennai#

Diagram

10 Ip Routing

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