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This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNA, nor is it a “braindump” of questions and answers. I sincerely hope that this document provides some assistance and clarity in your studies.
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2
WAN Connection Types
There are three types of Wan Connectivity :
• Dedicated Lines
• Circuit Switching
• Packet Switching
3
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
4
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)
5
Packet Switching
• Used for medium to longer distances and
for longer connectivity.
• Bandwidth is shared
• eg: Frame-Relay
6
• 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
7
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
8
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.
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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.
10
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) = 144kbps
- B stands for Bearer
- D stands for Delta
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ISDN Types
• PRI – Primary Rate Interface
2 Standards :
European Standard (E1)
- 30B + 1D channels
- (30*64) + (1*64) = 2.048Mbps
US Standard (T1)
- 23B + 1D channels
- (23*64) + ( 1*64) = 1.544Mbps
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TELCO
ISDN Connectivity for Home PC
TA
NT1
AnalogFax
AnalogPhone
PC
2 wires(Copper)
U-Line
RJ-11Connector
S/T Cable
ISDN SWITCH
RJ-45Connector
INTERNET
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TELCO
ISDN Connectivity for Office
NT1
2 wires(Copper)
U-Line
ISDN SWITCH
RJ-45Connector
LAN - 192.168.20.0/24
E0 192.168.20.150
BRI0
S/T Cable
ISDN CompatiblePhone (Digital)
INTERNET
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Network Address Translation
• Translates Private addresses to Public
and Public addresses to Private.
• Allows Communication from the private world to the
public world and not vice versa.
• Used for internet sharing
15
Dial on Demand Routing
• Connection is Automated.
• Established whenever a request comes to the router
and disconnected based on the Idle-Timeout
• Default idle-timeout is 120sec
• All these configurations are to be made on the router’s
bri interface.
• Interesting Traffic is identified using Dialer List
16
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
17
ISDN for Internet Configuration
ISDN SWITCH
S/T Cable
NT1
2 wires(Copper)RJ-45
Connector
U-Line
LAN - 192.168.20.0/24
E0 192.168.20.150
BRI0
TELCO
INTERNET
18
ISDN for Site to Site Configuration
1. BRI interface configurations
2. Dialer commands
3. ISDN Switch Type
4. Access-List
5. Routing
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ISDN for Site to Site Configuration
NT1
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
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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>
22
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
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
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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.
24
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
25
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
26
show isdn activeISDN#------------------------------------------------------------------------- ISDN ACTIVE CALLS
----------------------------------------------------------------------------------------Call Calling Called Remote Seconds Seconds Seconds ChargesType Number Number Name Used Left Idle Units
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISDN#
27
http://www.zoomgroup.com
28
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#
29
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
30
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#
31
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#
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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)#
Microsoft Windows 2000 [Version 5.00.2195](C) Copyright 1985-2000 Microsoft Corp.C:\>Connecting .....
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
3. 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
3. 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
33
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
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 >
5. Routing Commands configuration Router(config)#ip routing Router(config)#ip route <Destination Network ID>
<Destination Subnet Mask> <Next-hop IP address >
34
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)#
Microsoft Windows 2000 [Version 5.00.2195](C) Copyright 1985-2000 Microsoft Corp.C:\>Connecting .....
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
3. 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
3. 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
35
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
Gateway of last resort is not set
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)#
4. Access-list Commands configurationRouter(config)#dialer-list <dialer no.> protocol ip permit
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> <Exit interface/next hop ip address>
5. Routing Commands configuration Router(config)#ip routing Router(config)#ip route <Destination Network ID>
<Destination Subnet Mask> <Exit interface/next hop ip address>
36
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)#
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#
!!!!!
37
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
Gateway of last resort is not set
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#
!!!!!