WAN Connection Types There are three types of Wan Connectivity : Dedicated Lines Circuit Switching Packet Switching.

WAN Connection Types

There are three types of Wan Connectivity :

• Dedicated Lines

• Circuit Switching

• Packet Switching

Dedicated Lines

• Used for shorter to medium distances and

for longer connectivity.

• Private line

• Bandwidth is fixed

• Line is 24hrs up

• Whether used or not billing is done

• eg: Leased Lines

Circuit Switching

• Used for medium to longer distances and

for shorter connectivity.

• Bandwidth is fixed

• Billing Depends upon the Usage

• eg: ISDN , PSTN (Dial Up connections)

Packet Switching

• Used for medium to longer distances and

for longer connectivity.

• Bandwidth is shared

• eg: Frame-Relay

• Point to Point

Protocol

• Open Standard

Protocol (works with

same and different

company Routers i.e.

Cisco–Nortel, Cisco–

Multicom.

• Supports

Authentication

• Supports Compression

• High level Data link

Control

• Vendor proprietary

Protocol (works with

same company Router

only, i.e. Cisco-Cisco,

Nortel-Nortel, etc.)

• No Support for

Authentication

• No Support for

Compression

PPP HDLC

Encapsulation

PPP Authentication

In PPP two types of Authentication :

• PAP - Password Authentication Protocol

• 2 Way Handshaking protocol

• Username and password are sent in clear text

• No Security

• CHAP- Challenge Handshake Authentication protocol

• 3 Way Handshaking protocol

• Username is sent in clear text and Password in

encrypted form

• Secure

PAP Authentication

Hostname: 766 Hostname: 3640

User dials in

Sends Username & Password

Accept/Reject

CHAP Authentication

Hostname: 766

User dials in

3640randomid01User Pass3640 zoom

MD5

Hash

766Hashid02 MD5

User Pass766 zoom

Hash

Hostname: 3640

Accept/Rejectid03

Public Switched Telephone Network

• Analog Signal

• Maximum Speed of 33 to 40 Kbps

• Call Establishment is Slower (minimum 1 minute)

• Terminated at the PSTN Switch at the Exchange

• Supports Single service at a time.

Integrated Services Digital Network

• Digital Signal

• Minimum Speed for 128 Kbps

• Call Establishment is faster (within 2 sec)

• Terminated at the ISDN Switch at the Exchange

• Supports Multiple services at a time.

ISDN Types

• BRI – Basic Rate Interface

- (2B + 1D) channels

- Each channel 64 kbps

- B channel used for data

transmission

- D Channel used for

signaling(16kbps)

- (2* 64) + (1 * 16) + (1*48) =

192kbps

- B stands for Bearer

- D stands for Delta

- F stands for Framing

BB

FD

• PRI – Primary Rate Interface

2 Standards :

European Standard

(E1)

- 30B + 1D +1F channels

- (30*64) + (2*64) =

2.048Mbps

US Standard (T1)

- 23B + 1D +1F channels

- (23*64) + ( 1*64) +(1*8)

= 1.544Mbps

ISDN Types

BB

B

BBB

B

D F

RS- 232 DTE

Internet

ISP

ISDN Switch

ISDN Connectivity

ISDN BRI S/T

Internet

ISP

ISDN Switch

ISDN Connectivity

LAN

What is NAT?

• NAT is a process of changing the IP address,

typically used for internet access (due to

shortage of public IP addresses) or to hide the

internal network.

209.131.36.158www.yahoo.com

Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80

NAT/PAT

E0192.168.1.150

BRI 065.0.10.10

192.168.1.1:2045 209.131.36.158:80

65.0.10.10:2045 209.131.36.158:80

192.168.1.1:2045 209.131.36.158:80

202.56.36.192www.rediff.com

Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80

E0192.168.1.150

BRI 065.0.10.10

209.131.36.158:80 65.0.10.10:2045

65.0.10.10:2045 202.56.36.192:80

192.168.1.1:2045 202.56.36.192:80



Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80192.168.1.2:2055 65.0.10.10:2055 202.56.36.192:80 202.56.36.192:80

E0192.168.1.150

BRI 065.0.10.10 192.168.1.2:2055 202.56.36.192:80

65.0.10.10:2055 202.56.36.192:80

192.168.1.2:2055 202.56.36.192:80





Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80192.168.1.2:2055 65.0.10.10:2055 202.56.36.192:80 202.56.36.192:80

E0192.168.1.150

BRI 065.0.10.10

202.56.36.192:80 65.0.10.10:2045

202.56.36.192:80 65.0.10.10:2055

192.168.1.2:2055 202.56.36.192:2055

Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80192.168.1.2:2055 65.0.10.10:2055 202.56.36.192:80 202.56.36.192:80192.168.1.3:2055 65.0.10.10:2059 202.56.36.192:80 202.56.36.192:80

E0192.168.1.150

BRI 065.0.10.10

192.168.1.3:2055 202.56.36.192:80

65.0.10.10:2059 202.56.36.192:80

192.168.1.3:2055 202.56.36.192:80




Inside Local Inside global Outside global Outside Local192.168.1.1:2045 65.0.10.10:2045 209.131.36.158:80 209.131.36.158:80192.168.1.2:2055 65.0.10.10:2055 202.56.36.192:80 202.56.36.192:80192.168.1.3:2055 65.0.10.10:2059 202.56.36.192:80 202.56.36.192:80

E0192.168.1.150

BRI 065.0.10.10

202.56.36.192:80 65.0.10.10:2059

202.56.36.192:80 65.0.10.10:2059

192.168.1.3:2055 202.56.36.192:80


NAT

• Inside Local Addresses – An IP address assigned to a host inside a network. This address is likely to be a RFC 1918 private address.

• Inside Global Address – A legitimate IP address assigned by the NIC or service provider that represents one or more inside local IP address to the outside world.

• Outside Local Address - The IP address of an outside host as it known to the hosts in the inside network.

• Outside Global Address - The IP address assigned to a host on the outside network. The owner of the host assigns this address.

ISDN for Internet Configuration

1. BRI interface configurations

2. Authentication

3. Dialer commands

4. ISDN Switch Type

5. NAT

6. Access-List

7. Routing

8. Miscellaneous Commands

9. Troubleshooting commands

ISDN for Internet Configuration

ISDN SWITCH

NT1

LAN - 192.168.20.0/24

E0 192.168.20.150

BRI0TELCO

INTERNET

ISDN for Site to Site Configuration

1. BRI interface configurations

2. Dialer commands

3. ISDN Switch Type

4. Access-List

5. Routing

ISDN for Site to Site Configuration

LAN - 192.168.2.0/24

E0 192.168.2.150

BRI010.0.0.2

TELCO

LAN - 192.168.1.0/24

E0 192.168.1.150

BRI010.0.0.1

NT1

HYDERABADOFFICE

CHENNAIOFFICE

Tel: 777777 Tel: 555555

NT1

ISDN(config-if)#ISDN(config-if)#

================================Welcome to ISDN Router================================User Access Verificationpassword :****

****enable

configure terminal

ip address negotiatedno shutencapsulation pppppp authentication pap chap callin

ISDN>password :ISDN#Enter configuration commands, one per line. End with CNTL/Z.ISDN(config)#ISDN(config-if)#ISDN(config-if)#ISDN(config-if)#ISDN(config-if)#

Microsoft Windows 2000 [Version 5.00.2195](C) Copyright 1985-2000 Microsoft Corp.C:\>Connecting .....

ISDN(config-if)#

telnet 192.168.20.150

interface bri 0

ppp pap sent-username hyd_zoomhyd password zoom123ppp chap hostname hyd_zoomhydppp chap password zoom123

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address negotiatedRouter(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address negotiatedRouter(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}

2. Authentication ConfigurationRouter(config-if)#ppp authentication pap chap callinRouter(config-if)#ppp pap sent-username <username>

password <password>Router(config-if)#ppp chap hostname <username> Router(config-if)#ppp chap password <password>

2. Authentication ConfigurationRouter(config-if)#ppp authentication pap chap callinRouter(config-if)#ppp pap sent-username <username>

password <password>Router(config-if)#ppp chap hostname <username> Router(config-if)#ppp chap password <password>

ISDN(config-if)#dialer-group 5

ISDN(config)#ISDN(config-if)# exit

dialer string 172225ISDN(config-if)#

ISDN(config-if)#dialer idle-timeout 90

isdn switch-type basic-net3ISDN(config)# interface ethernet 0ISDN(config-if)# ip nat insideISDN(config-if)# exitISDN(config)# interface bri 0ISDN(config-if)# ip nat outsideISDN(config-if)# exitISDN(config)# ip nat inside source list 10 interface bri 0 overloadISDN(config)# access-list 10 permit 192.168.20.0 0.0.0.255ISDN(config)# dialer-list 5 protocol ip permitISDN(config)# ip routingISDN(config)# ip route 0.0.0.0 0.0.0.0 bri 0 ISDN(config)# ip domain-lookupISDN(config)#ISDN(config)#

3. Dialer Commands ConfigurationRouter(config-if)#dialer string <telephone no. of isp>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit

3. Dialer Commands ConfigurationRouter(config-if)#dialer string <telephone no. of isp>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit

4. ISDN Switch type ConfigurationRouter(config)#isdn switch-type <switch name>

basic-1tr6 1TR6 switch type for Germanybasic-5ess AT&T 5ESS switch type for the U.S.basic-dms100 Northern DMS-100 switch typebasic-net3 NET3 switch type for UK, Europe and Asiabasic-ni National ISDN switch typebasic-ts013 TS013 switch type for AustraliaNtt NTT switch type for Japanvn3 VN3 and VN4 switch types for France



6. Access-list Commands configurationRouter(config)#access-list <acl no.> <permit/deny>

<source address> <source wc mask>Router(config)#dialer-list <dialer no.> protocol ip permit

6. Access-list Commands configurationRouter(config)#access-list <acl no.> <permit/deny>

<source address> <source wc mask>Router(config)#dialer-list <dialer no.> protocol ip permit

ip name-server 61.0.0.57. Routing Commands configurationRouter(config)#ip routingRouter(config)#ip route <Destination Network ID>

<Destination Subnet Mask> <Exit interface type><interface no>

7. Routing Commands configurationRouter(config)#ip routingRouter(config)#ip route <Destination Network ID>

<Destination Subnet Mask> <Exit interface type><interface no>

7. Miscellaneous Commands (Default)Router(config)#ip name-server <ip address>

7. Miscellaneous Commands (Default)Router(config)#ip name-server <ip address>

5. NAT Commands configurationRouter(config)#interface ethernet <no>Router(config-if)#ip nat insideRouter(config-if)#exitRouter(config)#interface BRI <no>Router(config-if)#ip nat outsideRouter(config-if)#exitRouter(config)#ip nat inside source list <no> interface BRI <no> overload

5. NAT Commands configurationRouter(config)#interface ethernet <no>Router(config-if)#ip nat insideRouter(config-if)#exitRouter(config)#interface BRI <no>Router(config-if)#ip nat outsideRouter(config-if)#exitRouter(config)#ip nat inside source list <no> interface BRI <no> overload

show isdn statusISDN#Global ISDN Switchtype = basic-net3ISDN BRI0 interface dsl 0, interface ISDN Switchtype = basic-net3 Layer 1 Status: ACTIVE Layer 2 Status: TEI = 83, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED Layer 3 Status: 1 Active Layer 3 Call(s) Activated dsl 0 CCBs = 1 CCB:callid=8001, sapi=0, ces=1, B-chan=1, calltype=DATA The Free Channel Mask: 0x80000002 Total Allocated ISDN CCBs = 1ISDN#

Layer 1 = ACTIVE Layer 2 = MULTIPLE_FRAME_ESTABLISHEDLayer 3 = 1 - Active Calls

Implies, all configurations and the connectivity are fine.

Layer 1 = ACTIVE Layer 2 = MULTIPLE_FRAME_ESTABLISHEDLayer 3 = 1 - Active Calls

Implies, all configurations and the connectivity are fine.

show isdn statusISDN#Global ISDN Switchtype = basic-net3ISDN BRI0 interface dsl 0, interface ISDN Switchtype = basic-net3 Layer 1 Status: DEACTIVATED Layer 2 Status: TEI = 83, Ces = 1, SAPI = 0, State = TEI_ASSIGNED Layer 3 Status: 0 Active Layer 3 Call(s) Activated dsl 0 CCBs = 0 The Free Channel Mask: 0x80000003 Total Allocated ISDN CCBs = 0ISDN#

Layer 1 = DEACTIVATED Layer 2 = TEI_ASSIGNEDLayer 3 = 0 - Active Calls

Implies, Layer 1 problem : Check Physical Connectivity

Layer 1 = DEACTIVATED Layer 2 = TEI_ASSIGNEDLayer 3 = 0 - Active Calls

Implies, Layer 1 problem : Check Physical Connectivity

show isdn statusISDN#Global ISDN Switchtype = basic-net3ISDN BRI0 interface dsl 0, interface ISDN Switchtype = basic-net3 Layer 1 Status: ACTIVE Layer 2 Status: Layer 2 NOT Activated Layer 3 Status: 0 Active Layer 3 Call(s) Activated dsl 0 CCBs = 0 The Free Channel Mask: 0x80000003 Total Allocated ISDN CCBs = 0ISDN#

Layer 1 = ACTIVE Layer 2 = NOT ActivatedLayer 3 = 0 - Active Calls

Implies, Layer 2 problem : Check Encapsulation

Layer 1 = ACTIVE Layer 2 = NOT ActivatedLayer 3 = 0 - Active Calls

Implies, Layer 2 problem : Check Encapsulation

show isdn activeISDN#------------------------------------------------------------------------- ISDN ACTIVE CALLS

----------------------------------------------------------------------------------------Call Calling Called Remote Seconds Seconds Seconds ChargesType Number Number Name Used Left Idle Units

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISDN#

http://www.zoomgroup.com

show isdn activeISDN#------------------------------------------------------------------------- ISDN ACTIVE CALLS

----------------------------------------------------------------------------------------Call Calling Called Remote Seconds Seconds Seconds ChargesType Number Number Name Used Left Idle Units

----------------------------------------------------------------------------------------Out 172225 31 59 0 0

----------------------------------------------------------------------------------------ISDN# show isdn history------------------------------------------------------------------------- ISDN CALL HISTORY-------------------------------------------------------------------------History table has a maximum of 100 entries for disconnected calls.History table data is retained for a max of 15 Min for disconnected calls.-------------------------------------------------------------------------Call Calling Called Remote Seconds Seconds Seconds ChargesType Number Number Name Used Left Idle Units-------------------------------------------------------------------------Out 172225 19 0 0 0Out 23394150 40 0 0 0Out 27802461 120 0 0 0-------------------------------------------------------------------------ISDN#

show int bri 0ISDN#BRI0 is up, line protocol is up (spoofing) Hardware is BRI Internet address is 61.1.177.179/32 MTU 1500 bytes,BW 64 Kbit,DLY 20000 usec,rely 255/255,load 1/255 Encapsulation PPP, loopback not set Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 00:15:27 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/1/16 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 1 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 303 packets input, 1614 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 113 packets output, 702 bytes, 0 underruns 0 output errors, 0 collisions, 12 interface resets 0 output buffer failures, 0 output buffers swapped out 13 carrier transitions

show ip routeISDN#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 0.0.0.0 to network 0.0.0.0

C 192.168.20.0/24 is directly connected, Ethernet0C 192.168.7.0/24 is directly connected, Ethernet0 61.0.0.0/32 is subnetted, 2 subnetsC 61.1.177.182 is directly connected, BRI0C 61.1.160.82 is directly connected, BRI0S* 0.0.0.0/0 is directly connected, BRI0ISDN# ping www.yahoo.comType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msISDN#

show ip nat translationISDN#Pro Inside global Inside local Outside global Outside local -------------------------------------------------------------------------------udp 61.1.177.179:1041 192.168.20.3:1041 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1043 192.168.20.3:1043 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1044 192.168.20.3:1044 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1048 192.168.20.3:1048 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1052 192.168.20.3:1052 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1054 192.168.20.3:1054 61.1.128.5:53 61.1.128.5:53udp 61.1.177.179:1057 192.168.20.3:1057 61.1.128.5:53 61.1.128.5:53tcp 61.1.177.179:1050 192.168.20.3:1050 64.37.246.16:80 64.37.246.16:80tcp 61.1.177.179:1051 192.168.20.3:1051 64.37.246.16:80 64.37.246.16:80tcp 61.1.177.179:1039 192.168.20.3:1039 212.165.130.39:80 212.165.130.39:80tcp 61.1.177.179:1046 192.168.20.3:1046 212.165.130.40:80 212.165.130.40:80tcp 61.1.177.179:1047 192.168.20.3:1047 212.165.130.40:80 212.165.130.40:80tcp 61.1.177.179:1042 192.168.20.3:1042 202.54.124.171:80 202.54.124.171:80tcp 61.1.177.179:1045 192.168.20.3:1045 64.15.251.221:80 64.15.251.221:80tcp 61.1.177.179:1049 192.168.20.3:1049 64.15.251.221:80 64.15.251.221:80udp 61.1.177.179:1037 192.168.20.3:1037 61.1.128.5:53 61.1.128.5:53----------------------------------------------------------------------------ISDN#

dialer-group 5exit

Hyderabad(config-if)#Hyderabad(config-if)#

telnet 192.168.1.150

================================Welcome to Hyderabad Router================================User Access Verificationpassword :****

****enable

ip address 10.0.0.1 255.0.0.0no shutencapsulation hdlcdialer string 555555

Hyderabad>password :Hyderabad#Enter configuration commands, one per line. End with CNTL/Z.Hyderabad(config)#Hyderabad(config-if)#Hyderabad(config-if)#Hyderabad(config-if)#Hyderabad(config-if)#


Hyderabad(config)#

configure terminal

interface bri 0

isdn switch-type basic-net3

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address <address> <mask>Router(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address <address> <mask>Router(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}2. Dialer Commands Configuration

Router(config-if)#dialer string <remote tel no.>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit

2. Dialer Commands ConfigurationRouter(config-if)#dialer string <remote tel no.>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit





Hyderabad(config)#

show ip routeHyderabad#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, Ethernet0S 192.168.2.0/24 [1/0] via 10.0.0.2C 10.0.0.0/8 is directly connected, BRI0Hyderabad#

ip route 192.168.2.0 255.255.255.0 10.0.0.2 Hyderabad(config)# ^Z

dialer-list 5 protocol ip permitHyderabad(config)# ip routingHyderabad(config)#

4. Access-list Commands configurationRouter(config)#dialer-list <dialer no.> protocol ip permit


5. Routing Commands configuration Router(config)#ip routing Router(config)#ip route <Destination Network ID>

<Destination Subnet Mask> <Next-hop IP address >


<Destination Subnet Mask> <Next-hop IP address >

dialer-group 5exit

Chennai(config-if)#Chennai(config-if)#

================================Welcome to Chennai Router================================User Access Verificationpassword :****

****enable

ip address 10.0.0.2 255.0.0.0no shutencapsulation hdlcdialer string 777777

Chennai>password :Chennai#Enter configuration commands, one per line. End with CNTL/Z.Chennai(config)#Chennai(config-if)#Chennai(config-if)#Chennai(config-if)#Chennai(config-if)#


Chennai(config)#

configure terminal

interface bri 0

isdn switch-type basic-net3

telnet 192.168.2.150

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address <address> <mask>Router(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}

1. Configuring BRI interfaceRouter(config)#interface bri <no>Router(config-if)#ip address <address> <mask>Router(config-if)#no shutdownRouter(config-if)#encapsulation {ppp|hdlc}2. Dialer Commands Configuration

Router(config-if)#dialer string <remote tel no.>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit

2. Dialer Commands ConfigurationRouter(config-if)#dialer string <remote tel no.>Router(config-if)#dialer idle-timeout <seconds>Router(config-if)#dialer-group <group no.>Router(config-if)#exit





Chennai(config)#

show ip routeChennai#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


C 192.168.2.0/24 is directly connected, Ethernet0S 192.168.1.0/24 [1/0] via 10.0.0.1C 10.0.0.0/8 is directly connected, BRI0Chennai#

ip route 192.168.1.0 255.255.255.0 10.0.0.1 Chennai(config)# ^Z

dialer-list 5 protocol ip permitChennai(config)#ip routingChennai(config)#




<Destination Subnet Mask> <Exit interface/next hop ip address>


<Destination Subnet Mask> <Exit interface/next hop ip address>

Hyderabad(config)#

show ip routeHyderabad#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


C 192.168.1.0/24 is directly connected, Ethernet0S 192.168.2.0/24 [1/0] via 10.0.0.2C 10.0.0.0/8 is directly connected, BRI0Hyderabad#

ip route 192.168.2.0 255.255.255.0 10.0.0.2 Hyderabad(config)# ^Z

dialer-list 5 protocol ip permitHyderabad(config)# ip routingHyderabad(config)#

ping 192.168.2.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:

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

!!!!!

Chennai(config)#

show ip routeChennai#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


C 192.168.2.0/24 is directly connected, Ethernet0S 192.168.1.0/24 [1/0] via 10.0.0.1C 10.0.0.0/8 is directly connected, BRI0Chennai#

ip route 192.168.1.0 255.255.255.0 10.0.0.1 Chennai(config)# ^Z

dialer-list 5 protocol ip permitChennai(config)#ip routingChennai(config)#

ping 192.168.1.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:

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

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WAN Connection Types There are three types of Wan Connectivity : Dedicated Lines Circuit Switching Packet Switching.

Documents

framing b b f d slide

acceptrejectid03 slide

connections slide

b channel

framerelay slide

types of authentication

encrypted form secure

ppp authentication