Tecnologias Wan

BOSON NETSIM FOR CCNP ROUTING

LAB 2
OPTIMIZE
ADDRESSING LAB
(VLSM)
Boson Software
12655 Race Track Road
Tampa, FL 33626
www.boson.com

Boson CCNP Routing

Objectives
Use VLSM to subdivide a Class C address and to maximize addressing
efficiency

NOTE: Upon completion of this lab. We will return the routers back to the initial
configuration. Make sure that you have a copy ofeach router’s config in a text file

Lab Diagram

P1R3

10.40.1.2

FastEthernet 0/0

Pod 1

Switch1
Loopback 0

10.10.1.1
Loopback 0

10.20.1.1

FastEthernet 0/0

P1R2

10.40.1.1

Serial 0/0

10.30.1.6

Serial 0/0

Subnet Mask
255.255.255.0

10.30.1.5

P1R1
FastEthernet 0/0

10.100.100.1

Classroom Backbone

BSCI
Version # 2.1
Copyright © 2004 BosonSoftware, Inc. All Rights Reserved

CCNP
Page 2

Boson CCNP Routing

Command Summary

Command
configure terminal
show ip route
ip address ip_address
no ip address ip_address
enable
disable
exit
show ip interface brief
erase startup-config
show running-config

Description
enter global configuration mode
displays the IP routing table
set the IP address to the value ip_addressremoves an IP address from an interface
enter Privileged mode
return to User mode
back up one level in the menu structure
displays a brief summary of interface status
and configuration
deletes the startup-config file in NVRAM
view the active configuration file

BSCI
Version # 2.1
Copyright © 2004 Boson Software, Inc. All Rights Reserved

CCNP
Page 3

Boson CCNP Routing

Task 1Network Analysis
1. Log on to each of the routers in your pod, issue the command show ip route.
Note the size of the subnets in the route table. Using /24 subnetting, how
many hosts are allowed per network ?
______________________________________________________________
2. Which networks are wasting address space? Hint, these networks only have
2 hosts.______________________________________________________________

Task 2
Planning New Address Space
1. What type of routing protocol is required to implement a VLSM design?
______________________________________________________________
2. What routing protocol is in use?
______________________________________________________________
3. For grading purposes please refer to the solution on page 7.

SCENARIO: The customer has beenforced into using valid IP addressing on the
public Internet by special application requirements. The Internet Service Provider
has allocated a single class C address to each customer. The class C address to
be used is: 195.10.1.0

BSCI
Version # 2.1
Copyright © 2004 Boson Software, Inc. All Rights Reserved

CCNP
Page 4

Boson CCNP Routing

Table Network Size Requirements
NetworkRouter 1 Loopback
Router 2 Loopback
Lan between R2 and R3
Wan between R1 and R2

Host Requirements
30
50
100
2

New Address Plan Worksheet

P1R3
Fast Ethernet 0/0

__________

Pod 1

Switch1
Loopback 0

_________
Loopback 0

_________

FastEthernet 0/0 __________

P1R2
Serial 0/0

__________

Serial 0/0

__________

P1R1
FastEthernet 0/0

10.100.100.1Classroom Backbone

BSCI
Version # 2.1
Copyright © 2004 Boson Software, Inc. All Rights Reserved

CCNP
Page 5

Boson CCNP Routing

Task 3
Readdressing the Network
1. Remove the current private address space.
2. Re-configure the network using the new VLSM address plan
3. Configure Rip to route for the new network
4. R1 FastEthernet 0/0 should remain 10.100.100.1

Task 4Verification
1. Log on to each of the routers in your pod, issue the command show ip route.
Note the size of the subnets in the route table. Note the new IP addresses
and subnet masks in use.
2. Use the command show ip interface brief to verify the interface IP
addresses are correct
3. Ensure that you have full IP connectivity within your pod.
4. If you followed the IP Address solution on page 7...