ccna-ccnp remote lab guide

Cisco Remote Lab Guide IT – Infra – TL-IIJT – Blr , Confidential 7/2/2011

Teamlease – IIJT Confidential (IT-Infra TL-IIJT,Blr)

INDEX

1. Introduction

2. Purpose/Advantages of CRL.

3. Cisco Datacenter look

4. Infrastructures Used

5. Connectivity (Routers)

6. Connectivity (Switches)

7. Connectivity (Routers and Switches)

8. Equipments Representation in Racks

9. Accessibility

10. Troubleshooting

11. Advance Functions

12. Network Diagram

13. Queries


Introduction

Cisco Remote Lab (CRL) is a group of Cisco network devices (Composed of Routers

and Switches) placed at Teamlease-IIJT Datacenter, Bangalore and can be

accessed from anywhere. Let us inform what exactly it means. Many of us call it

as virtual lab which we would not agree to call so, as virtual term means

something which doesn’t exists in reality but here, we have all Cisco equipments

mounted and connected in one place so call it Remote labs. CRL is a complete

network at it’s own which can be accessed remotely. Students will have a great

opportunity to get connect to a variety of devices and configure them as required

under the guidance of an able Trainer. CRL is designed and developed by a set of

CCSIs.

Purpose and Advantages of CRL

As the world is slowly moving to virtualization and Remote Infrastructure

Management, we need to incorporate technologies to reduce the space

consumed by hardware equipments and decreasing the size of Server, Storage

and Network farms. Here comes the concept of CRL. It serves various purposes

listed below.

1. Decreases the space consumed by hardware.

2. Access to more number of Cisco equipments simultaneously.

3. Larger Network implementation.

4. Implement more designs supported by various configurations.


Cisco Equipments in datacenter.


Infrastructure

CCNA Rack 1&2

Sl No Router Model No No Of Routers used 1 2800 2800 1

2 2600 2620 3

3 2600 2611XM 7

Sl No Switch Model No No Of Switches 1 Catalyst 2960 2

2 Catalyst 2950 2

3 Catalyst 3550 1

2 PC’s with Winxp installed 1 each CCNA Rack for RDP Connections and 1 PC with

Win 2k3 Server Installed for domain users.

CCNP Rack1

Sl No Router Model No No Of Routers used 1 2800 2800 9

2 2600 2611XM 1

Sl No Switch Model No No Of Switches 1 Catalyst 2950 2

2 Catalyst 3550g 2

1 PC with win xp installed.


Connectivity (Routers)

The above mentioned diagram shows the interconnectivity between routers.


Connectivity (Switches)

The above mentioned diagram shows the interconnectivity between Switches.


Connectivity (Routers & Switches)

The above mentioned diagram shows the interconnectivity between Routers and

Switches


In the previous pages we had seen the basic connectivity through network diagrams. Below

figure represents the same network diagram in a lay man terms.

To and From Service Provider


Note :- Similar type of topology is done for rest of the Cisco racks.

Accessibility

CRL can be accessed through one common public IP with different port no’s.

Sl No Rack Telnet RDP

1 CCNA Rack1 121.243.47.251 1001 121.243.47.251:1002

2 CCNA Rack2 121.243.47.251 1003 121.243.47.251:1004

3 CCNP Rack 121.243.47.251 1005 121.243.47.251:1006

Same username and password will work for accessing RDP as well as through

telnet. For Win Vista and above operating system we need to enable/Install

component of telnet called as ‘telnet client’ to connect.

I. To Login into the Access Server :

Open Command Prompt or Telnet Client and enter the commands as follows: Telnet 121.243.47.251 port number Note: Use the following TCP port in telnet command to access particular rack CCNA Rack 1(1001), CCNA Rack (1003), CCNP Rack (1005) Then you will be connected to the CCNA LAB Access Server and will be prompted for authentication. User Access Verification Username: user1 <enter the credentials shared by your instructor> Password: ******** CCNA_Rack1> <prompt displayed will identify the Rack Number you have logged into>


II. Obtaining the current usage status of the Rack: Use the following command to identify the users and the routers currently in access/use. CCNA_Rack1>show users <Displays current users and routers in access> Line User Host(s) Idle Location 33 tty 33 idle 00:18:22 R1 34 tty 34 idle 00:13:44 R1 35 tty 35 idle 00:13:17 R1 36 tty 36 idle 00:00:11 R1 39 tty 39 idle 01:11:17 R1 42 tty 42 idle 00:52:46 R1 43 tty 43 idle 00:52:46 R1 44 tty 44 idle 01:06:51 R1 45 tty 45 idle 01:06:18 R1 66 vty 0 user1 r1 00:23:56 59.164.96.181 <Username and IP used for access> r2 00:23:33 r7 01:21:15 sw1 01:19:05 sw2 01:17:37 Note: From the above output a user with username “User1” was already logged into the access server “CCNA_RACK1” and currently accessing “R1, R2, R7, Sw1 and Sw2” devices.


III. To access the devices which are available: Below is the syntax to access a device from the Access Server: From the above output devices R5, R6, R8, R9, Sw3 and Sw4 are available for use. CCNA_Rack1>r5 <Use R1, R2, R3 …. For accessing respective Router > Trying R1 (10.0.0.1, 2033)... Open R5> R5> CCNA_Rack1>Sw1 <Use Sw1, Sw2 …. For accessing respective Switch > Trying Sw1 (10.0.0.1, 2042)... Open Sw1> Sw1> IV. Accessing multiple devices and moving Between devices: To access multiple devices one should follow the below mentioned procedure: Telnet in to the Access Server. Login in to a device CCNA_Rack1>r1 trying R1 (10.0.0.1, 2033)... Open R1> Press the key sequence “ Ctrl+shift+6+x (Break Key)” to jump to the access server without logging out from R1. R1> <Press Ctrl+shift+6+x here> CCNA_RACK1> <You will be brought to Access Server> CCNA_RACK1> R2 <Follow the normal procedure to login into another device>


To move between the devices follow the below process. R2> <Use the Break Key to jump to Access Server> CCNA_Rack1>show sessions <Displays current active sessions> Conn Host Address Byte Idle Conn Name 1 r1 10.0.0.1 20 52 r1* 2 r2 10.0.0.1 0 0 r2 CCNA_RACK1>1 <Type the connection number and press return to login into a device> R1> <Connection 1 belongs to R1 from the above output> Follow the same procedure to go back to R2. < Break Key and then Connection Number> V. Disconnecting or terminating sessions: To terminate session to the devices. CCNA_Rack1>show sessions <Displays current active sessions> Conn Host Address Byte Idle Conn Name 1 r1 10.0.0.1 20 52 r1 * 2 r2 10.0.0.1 0 0 r2 CCNA_RACK1> disconnect 2 <Disconnects connection 2. In this case its R2> CCNA_Rack1>show sessions <Session with R2 was terminated> Conn Host Address Byte Idle Conn Name 1 r1 10.0.0.1 20 52 r1


VI. Troubleshooting access problems from the Access Server: Often we will face problems access devices because of not terminated sessions or busy lines. To terminate sessions use “show sessions” and then use “disconnect” command to disconnect a device in use. To troubleshoot line problems follow the below mentioned procedure: CCNA_Rack1>r2 <Connection to R2 was refused> Trying R2 (10.0.0.1, 2034)... < “2034” is the port used to access the device> % Connection refused by remote host < The last two digits from port number “34” is the line number> CCNA_Rack1>show sessions <Use show sessions to check the access state of R2> % No connections open <Currently no sessions are open to R2> CCNA_Rack1>clear line 34 <Use “Clear Line 34” to clear the line for R2.> [confirm] [OK] CCNA_Rack1>clear line 34 <Clear the line twice before attempting to access> [confirm] [OK] CCNA_Rack1>r2 Trying R2 (10.0.0.1, 2034)... Open R2>


VII. Using TFTP Server: Each racks Switch 1 is connected to a Windows Machine via a trunk link which was installed with TFTP Server Software. Please check the Rack Connectivity for port connectivity information. Please find below for VLAN and IP Information for accessing the TFTP Server 1. CCNA Rack 1 : Vlan 110, 11.0.0.1/24 2. CCNA Rack 2 : Vlan 220, 11.0.0.1/24 3. CCNP Rack : Vlan 330, 11.0.0.1/24 Procedure to access the TFTP Server from the router: 1. Configure the trunk interface of switch 1 of the rack with following commands (config)# interface name mod/slot <Refer to Rack Connectivity Guide for trunk interface > (config-if)# switchport mode trunk (config-if)# switchport trunk allowed vlan 110 < use respective TFTP vlan of a rack> 2. Configure the interface connected to the router in the same VLAN as above. (config)# interface name mod/slot <Refer to Rack Connectivity Guide for trunk interface > (config-if)# switchport mode access (config-if)# switchport access vlan 110 < use respective TFTP vlan of a rack> 3. Establish IP connectivity by assigning the router interface with an IP from 11.0.0.0/24 subnet excluding the 11.0.0.1 address which is TFTP server itself.


4. Check the IP connectivity between the router and TFTP server using PING. 5. Perform TFTP Transfers using the copy command from the router. Procedure to access the TFTP Server application on the Windows PC: 1. Access the TFTP server using RDP on a TCP port respective to each rack as given below CCNA Rack 1 : 121.243.47.251:1002 CCNA Rack 2 : 121.243.47.251:1004 CCNP Rack : 121.243.47.251:1006 2. Login using the same credentials used for Telnet. 3. Access the Solarwinds TFTP Server from the programs menu. 4. Configure the path for the IOS file in the setting menu. 5. Start the tftp service before initiating the transfer from the router.

Advance Functions

Well advance functions include working on SDM and IOS part. We can even work

on SDM as well as TFTP server using CRL.

Working on SDM:

As discussed in earlier section first we have to configure http service on router

which we want to configure or manage through SDM.


Ip http server will enable http services on your router. Using show running-

config command we can check whether router model supports SDM or not.

Now, enter in the priviledge mode of router using enable command and go to the

configure terminal command.

Enter the specific configuration mode to configure ip address to the router.

Login to the PC using RDP with the required port no as

121.243.47.251:1002 <for CCNA Rack1>

Enter the ip address of router to the SDM software installed in the Win PC.

Now you can enter into the SDM mode of configuration of the router.

SDM and TFTP server is installed in the PC for your convenience


Network Diagram


Queries & Suggestions

The above mentioned CRL is handled by Teamlease Services Pvt Ltd , Bangalore

IT-Infra Team. Please send a mail to [email protected] or

[email protected] in case of any queries.

We always welcome suggestions from your end.

mailto:[email protected]

mailto:[email protected]

ccna-ccnp remote lab guide

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