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 CCNP nor is it a “braindump” of questions and answers. I sincerely hope that this document provides some assistance and clarity in your studies.

1. 1

2. Enhanced Interior Gateway
Routing Protocol
• Cisco proprietary protocol
• Classless routing protocol
• Includes all features of IGRP
• Metric (32 bit) : Composite Metric
(BW + Delay + load + MTU + reliability )
• Administrative distance is 90
• Updates are through Multicast (224.0.0.10 )
• Max Hop count is 255 (100 by default)
• Supports IP, IPX and Apple Talk protocols
• Hello packets are sent every 5 seconds
• Convergence rate is fast
2

3. EIGRP - Network Diagram
10.0.0.1/8
S0
HYD
11.0.0.1/8
S0
S1
10.0.0.2/8
E0
192.168.1.150/24
LAN - 192.168.1.0/24
CHE
S1
11.0.0.2/8
E0
192.168.2.150/24
LAN - 192.168.2.0/24
BAN
E0
192.168.3.150/2
LAN - 192.168.3.0/24
3

4. Disadvantages of EIGRP
• Works only on Cisco Routers
4

5. 5

6. Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:> telnet 192.168.1.150
Connecting .....
================================
Welcome to Hyderabad Router
================================
User Access Verification
password : ****
Directly Connected Networks on
Directly Connected Networks on
Hyderabad> enable
HYDERABAD Router
password : ****
HYDERABAD Router
Hyderabad# configure terminal
192.168.1.0
192.168.1.0
Enter configuration commands, one per line. End with CNTL/Z.
10.0.0.0
10.0.0.0
Hyderabad(config)# interface serial 0
Hyderabad(config-if)# ip address 10.0.0.1 255.0.0.0
Hyderabad(config-if)# no shut
Hyderabad(config-if)# clockrate 64000
Hyderabad(config-if)# encapsulation hdlc
Hyderabad(config-if)# exit
Hyderabad(config)#
6

7. Hyderabad(config)# no ip routing
Hyderabad(config)# ip routing
Hyderabad(config)# router eigrp 10
Hyderabad(config-router)# network 192.168.1.0
Hyderabad(config-router)# network 10.0.0.0
Hyderabad(config-router)#
Configuring EIGRP
Configuring EIGRP
Router(config)# router eigrp <as no>
Router(config)# router eigrp <as no>
Router(config-router)# network <Network ID>
Router(config-router)# network <Network ID>
7

8. Hyderabad(config)# no ip routing
Hyderabad(config)# ip routing
Hyderabad(config)# router eigrp 10
Hyderabad(config-router)# network 192.168.1.0
Hyderabad(config-router)# network 10.0.0.0
Hyderabad(config-router)# ^Z
Hyderabad# 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
C
10.0.0.0/8 is directly connected, Serial0
D
11.0.0.0/8 [90/2681856] via 10.0.0.2, 00:00:49, Serial0
C
192.168.1.0/24 is directly connected, Ethernet0
D
192.168.2.0/24 [90/2195456] via 10.0.0.2, 00:00:49, Serial0
Metric of EIGRP
90 isMetricof EIGRP
90 isnothing but
nothing but
D – for EIGRP routes
D –192.168.3.0/24 [90/2707456]Distance
for EIGRP routes
Administrative Distance
D
Composite Metric
Administrative via 10.0.0.2, 00:00:25, Serial0
Composite Metric
Hyderabad#
8

9. Hyderabad# show ip eigrp topology
IP-EIGRP Topology Table for process 10
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 10.0.0.0/8, 1 successors, FD is 2169856
via Connected, Serial0
P 11.0.0.0/8, 1 successors, FD is 2681856
via 10.0.0.2 (2681856/2169856), Serial0
P 192.168.1.0/24, 1 successors, FD is 281600
via Connected, Ethernet0
P 192.168.2.0/24, 1 successors, FD is 2195456
via 10.0.0.2 (2195456/281600), Serial0
P 192.168.3.0/24, 1 successors, FD is 2707456
via 10.0.0.2 (2707456/2195456), Serial0
Hyderabad# show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H
Address
Interface
Hold Uptime
SRTT
RTO Q Seq
(sec)
(ms)
Cnt Num
0
10.0.0.2
Se0
13 00:07:24
42
252 0 8
Hyderabad#
9

10. Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:> telnet 192.168.2.150
Connecting .....
================================
Welcome to Chennai Router
================================
User Access Verification
password : ****
Directly Connected Networks on
Chennai> enable Directly Connected Networks on
CHENNAI Router
password : ****
CHENNAI Router
Chennai# configure terminal
192.168.2.0
192.168.2.0
Enter configuration commands, one per line. End with CNTL/Z.
10.0.0.0
10.0.0.0
Chennai(config)# interface serial 1
11.0.0.0
11.0.0.0
Chennai(config-if)# ip address 10.0.0.2 255.0.0.0
Chennai(config-if)# no shut
Chennai(config-if)# encapsulation hdlc
Chennai(config-if)# interface serial 0
Chennai(config-if)# ip address 11.0.0.1 255.0.0.0
Chennai(config-if)# no shut
Chennai(config-if)# encapsulation hdlc
10

11. Chennai(config)# no ip routing
Chennai(config)# ip routing
Chennai(config)# router eigrp 10
Chennai(config-router)# network 192.168.2.0
Chennai(config-router)# network 10.0.0.0
Chennai(config-router)# network 11.0.0.0
Configuring EIGRP
Configuring EIGRP
Chennai(config-router)#
Router(config)# router eigrp <as no>
Router(config)# router eigrp <as no>
Router(config-router)# network <Network ID>
Router(config-router)# network <Network ID>
11

12. Chennai(config)# no ip routing
Chennai(config)# ip routing
Chennai(config)# router eigrp 10
Chennai(config-router)# network 192.168.2.0
Chennai(config-router)# network 10.0.0.0
Chennai(config-router)# network 11.0.0.0
^
Chennai(config-router)# Z
Chennai# 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
C
10.0.0.0/8 is directly connected, Serial1
C
11.0.0.0/8 is directly connected, Serial0
D
192.168.1.0/24 [90/2195456] via 10.0.0.1, 00:01:27, Serial1
C
192.168.2.0/24 is directly connected, Ethernet0
D
192.168.3.0/24 [90/2195456] viaof but
90 isMetric ofIGRP
nothing but
90 isMetric 11.0.0.2, 00:01:00, Serial0
nothing IGRP
D – for EIGRP routes
D – for EIGRP routesAdministrative Distance
Chennai#
Composite Metric
Administrative Distance
Composite Metric 12

13. Chennai# show ip eigrp topology
IP-EIGRP Topology Table for process 10
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 10.0.0.0/8, 1 successors, FD is 2169856
via Connected, Serial1
P 11.0.0.0/8, 1 successors, FD is 2169856
via Connected, Serial0
P 192.168.1.0/24, 1 successors, FD is 2195456
via 10.0.0.1 (2195456/281600), Serial1
P 192.168.2.0/24, 1 successors, FD is 281600
via Connected, Ethernet0
P 192.168.3.0/24, 1 successors, FD is 2195456
via 11.0.0.2 (2195456/281600), Serial0
Chennai# show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H
Address
Interface
Hold Uptime
SRTT
RTO Q Seq
(sec)
(ms)
Cnt Num
1
11.0.0.2
Se0
12 00:11:34 389 2334 0 4
0
10.0.0.1
Se1
13 00:12:02
27
200 0 5
Chennai#
13

14. Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:> telnet 192.168.3.150
Connecting .....
================================
Welcome to Banglore Router
================================
User Access Verification
password : ****
Directly Connected Networks on
Banglore> enableDirectly Connected Networks on
Banglore Router
password : ****
Banglore Router
Banglore# configure terminal
192.168.3.0
192.168.3.0
Enter configuration commands, one per line. End with CNTL/Z.
11.0.0.0
11.0.0.0
Banglore(config)# interface serial 1
Banglore(config-if)# ip address 11.0.0.2 255.0.0.0
Banglore(config-if)# no shut
Banglore(config-if)# clockrate 64000
Banglore(config-if)# encapsulation hdlc
Banglore(config-if)# exit
Banglore(config)#
14

15. Banglore(config)# no ip routing
Banglore(config)# ip routing
Banglore(config)# router eigrp 10
Banglore(config-router)# network 192.168.3.0
Banglore(config-router)# network 11.0.0.0
Banglore(config-router)#
Configuring EIGRP
Configuring EIGRP
Router(config)# router eigrp <as no>
Router(config)# router eigrp <as no>
Router(config-router)# network <Network ID>
Router(config-router)# network <Network ID>
15

16. Banglore(config)# no ip routing
Banglore(config)# ip routing
Banglore(config)# router eigrp 10
Banglore(config-router)# network 192.168.3.0
Banglore(config-router)# network 11.0.0.0
Banglore(config-router)# ^Z
Banglore# 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
D
10.0.0.0/8 [90/2681856] via 11.0.0.1, 00:01:32, Serial1
C
11.0.0.0/8 is directly connected, Serial1
D
192.168.1.0/24 [90/2707456] via 11.0.0.1, 00:01:32, Serial1
90 isMetric of but
nothing IGRP
nothing IGRP
D – 192.168.2.0/24 [90/2195456] of but11.0.0.1, 00:01:32, Serial1
for EIGRP routes 90 isMetric via
D D – for EIGRP routes
Administrative Distance
Composite Metric
Administrative Distance
Composite Metric
C
192.168.3.0/24 is directly connected, Ethernet0
Banglore#
16

17. Banglore# show ip eigrp topology
IP-EIGRP Topology Table for process 10
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 10.0.0.0/8, 1 successors, FD is 2681856
via 11.0.0.1 (2681856/2169856), Serial1
P 11.0.0.0/8, 1 successors, FD is 2169856
via Connected, Serial1
P 192.168.1.0/24, 1 successors, FD is 2707456
via 11.0.0.1 (2707456/2195456), Serial1
P 192.168.2.0/24, 1 successors, FD is 2195456
via 11.0.0.1 (2195456/281600), Serial1
P 192.168.3.0/24, 1 successors, FD is 281600
via Connected, Ethernet0
Banglore# show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H
Address
Interface
Hold Uptime
SRTT
RTO Q Seq
(sec)
(ms)
Cnt Num
0
11.0.0.1
Se1
14 00:14:15
36
216 0 7
Banglore#
17

18. Hyderabad# ping 192.168.3.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms
Hyderabad# ping 192.168.2.1
Type 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 ms
Hyderabad#
18

19. Chennai# ping 192.168.1.1
Type 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 ms
Chennai# ping 192.168.3.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms
Chennai#
19

20. Banglore# ping 192.168.1.1
Type 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 ms
Banglore# ping 192.168.2.1
Type 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 ms
Banglore#
20