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Routers Used : 3640 w/ NM-4T and NM-1FE-TX modules IOS : c3640-jk9s-mz.124-16a Objective In this lab EIGRP will be configured over a full mesh topology and then tested to observe DUAL replace a successor with a feasible successor after a link failure. Scenario The International Travel Agency wants to run EIGRP on its core, branch, and regional routers. EIGRP is to be configured and tested for its ability to install alternate routes in the event of link failure. Step 1 Build and configure the network according to the diagram, configuring EIGRP as indicated for AS 100. If using the configuration files from the previous lab, be sure to change IP addresses according to the diagram. Also, remove all loopback interfaces. Set the bandwidth for each serial interface to reflect the diagram. Use the show interface command to verify the configuration. Use ping and show ip route to verify the configuration and test connectivity between all routers. Step 2 Verify that EIGRP maintains all routes ...

Routers Used : 3640 w/ NM-4T modules IOS : c3640-jk9s-mz.124-16a Objective In this lab EIGRP will be configured on three Cisco routers within the International Travel Agency WAN and the basic behaviors of the protocol will be observed. Scenario The International Travel Agency is implementing EIGRP. EIGRP must be configured at all three locations before the Dion1 headquarters can connect to the Dion2 headquarters. Step 1 Build and configure the network according to the diagram, but do not configure EIGRP yet . Use ping to test connectivity between serial interfaces. Dion1 and Dion2 will not be able to ping each other until EIGRP is enabled. Step 2 Configure EIGRP for AS 100 on all routers as the following shows: Dion1(config)#router eigrp 100 Dion1(config-router)#network 192.168.100.0 Dion1(config-router)#network 172.16.0.0 Arief(config)#router eigrp 100 Arief(config-router)#network 172.16.0.0 Dion2(config)#router eigrp 100 Dion2(config-router)#network 192.168.200.0 Dion2(config-router...

The Cisco CCNA network associate certification validates the ability to install, configure, operate, and troubleshoot medium-size routed and switched networks, including implementation and verification of connections to remote sites in a WAN. This new curriculum includes basic mitigation of security threats, introduction to wireless networking concepts and terminology, and performance-based skills. This new curriculum also includes (but is not limited to) the use of these protocols: IP, Enhanced Interior Gateway Routing Protocol (EIGRP), Serial Line Interface Protocol Frame Relay, Routing Information Protocol Version 2 (RIPv2),VLANs, Ethernet, access control lists (ACLs). 1 Console Login 2 Router Configuration 3 Examine the Router 4 Copy to a TFTP server 5 Copy from TFTP server 6a Clear the backup config 6b Saving the backup configuration 7 Copy to NVRAM 8 Initial router configuration 9 Initial Switch Configuration 10 RIP routing 11 IGRP routing 12 Create Accesslist 13 IPX Access List ...

I tried to connect my Ubuntu laptop to Cisco Router console port. I did successfully. What you will need: A roll-over cable (Cisco Console Cable). These are usually RJ-45 on the router side and serial on the PC side. If your laptop doesn’t have a serial port (like mine) you can get a 9-pin D-sub serial to USB cable. I got the BAFO USB Serial to DB9. I bought it in Ambassador Mall Kuningan Jakarta last night. Get Connected: Connect all the cables: USB -> Serial -> Crossover –> Console Port Download and Install Putty . root@dion-laptop:~# apt-get install putty Make sure that the USB to serial cable is recognized. root@dion-laptop:~# dmesg | grep tty [ 0.004000] console [tty0] enabled [ 1.923508] tty ptyx4: hash matches [ 131.637904] usb 3-2: pl2303 converter now attached to ttyUSB0 [ 173.768300] type=1503 audit(1243914954.561:5): operation="inode_permission" requested_mask="w::" denied_mask="w::" fsuid=0 name="/dev/ttyUSB0" pid=...

One of the interesting things about GNS3 and Dynamips is that you can connect your topology to the real world. For some of your CCNA and CCNP studies you may need to run an actual Web browser or Cisco’s Security Device Manager (SDM) among others. Just connect your topology to your real PC. You could even connect to virtual machines running on your computer inside VMware or Virtual PC. I’ve even set up two copies of Windows XP Professional running inside VMware virtual machines. Then I ran Cisco soft IP Phones that could talk to themselves. You could connect your virtual network to a real network as well. Connecting a virtual topology running within GNS3 and Dynamips to real devices is very exciting, but again, your throughput is going to be limited compared to using real equipment for the entire topology. It only makes sense to use GNS3 and Dynamips in a lab environment and for learning purposes. Any other usage is highly discouraged! Connecting your topology to your real PC is very si...

You may also simply add another router to your topology and configure it to act like a PC. This method would use more memory and processor cycles than the previous method, so I would only recommend this method as a secondary choice. Just add a router and enter the following commands: Router(config)# no ip routing (Turns off IP routing function ) Router(config)# interface fa0/0 (Switches to FastEthernet interface) Router(config-if)# ip address address subnet_mask (Assigns IP address and subnet mask to interface ) Router(config-if)# no shutdown (Turns interface on ) Router(config-if)# exit (Returns to global configuration mode ) Router(config)# ip default-gateway (gateway_address Configures the default gateway ) Router(config)# ip http server (Optional – starts http server process Connect the router (acting as a PC) to the rest of your topology.)

The Virtual PC Simulator is a program that runs within Windows or Linux. It has limited functionality, but most important, it allows pings and traceroutes. These are the most common testing commands used during CCNA or CCNP training and are often the only commands needed. Using VPCS you will save memory and CPU cycles. If you do not need more functionality in a workstation within your topology, I highly recommend VPCS. The Virtual PC Simulator is a free product available at the following. Web site: http://wiki.freecode.com.cn/doku.php?id=wiki:vpcs How to install in windows? Download the software here and extract to your folder. You will find file cygwin1.dll in the extracted folder. Go to C:\Program Files\GNS3\Dynamips , search and rename the file cygwin1.dll into cygwin1.dll.old and copy the file cygwin1.dll from your vpcs folder to this folder. Open command prompt, enter the vpcs folder and type vpcs.exe. It is best to open the Virtual PC Simulator before starting GNS3. Welcome to ...