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This topology contains 3 routers and 1 switch. Complete the topology. Drag the appropriate device icons to the labeled Device Drag the appropriate connections to the locations labeled Connections. Drag the appropriate IP addresses to the locations labeled IP address (Hint: use the given host addresses and Main router information) To remove a device or connection, drag it away from the topology. Use information gathered from the Main router to complete the configuration of any additional routers . No passwords are required to access the Main router. The config terminal command has been disabled for the HQ router. The router does not require any configuration. Configure each additional router with the following: Configure the interfaces with the correct IP address and enable the interfaces. Set the password to allow console access to consolepw Set the password to allow telnet access to telnetpw Set the password to allow privilege mode access to privpw Note: Because routes are not being

Here you will find answers to SIMULATION Questions  Question: A network associate is configuring a router for the weaver company to provide internet access. The ISP has provided the company six public IP addresses of 198.18.184.105 198.18.184.110. The company has 14 hosts that need to access the internet simultaneously. The hosts in the company LAN have been assigned private space addresses in the range of 192.168.100.17 – 192.168.100.30. The following have already been configured on the router： - The basic router configuration - The appropriate interfaces have been configured for NAT inside and NAT outside - The appropriate static routes have also been configured (since the company will be a stub network, no routing protocol will be required.) - All passwords have been temporarily set to "cisco" Solution: The company has 14 hosts that need to access the internet simultaneously but we just have 6 public IP addresses from 198.18.184.105 to 198.18.184.110/29. Therefore we have

The CCNA is an exciting beginning to your Cisco career, but just having the certification simply isn't enough. A recruiter or interviewer isn't going to be impressed just with the cert; you've got to have some real-world knowledge to back it up. I've been down that road myself, and sat on both sides of the CCNA job interview table. With that in mind, I'd like to offer to you some tips on becoming a truly valuable and employable CCNA. Get some hands-on experience. I know the trap well; you can't get experience until you get a CCNA, and you can't get a CCNA without real experience. Well, actually, you can, but do you want to? Working on simulators is fine to a certain extent, but don't make the classic mistake of depending on them. I've seen plenty of CCNAs who were put in front of a set of routers and really didn't know what to do or how to put together a simple configuration, and had NO idea how to begin troubleshooting. There are CCNA classes

In this Example will open ports for need to use out of using will close it alls. This case no have inside (internal) server. Step for setting Up : Router# conf t Router(config)# access-list 100 permit tcp any any range 20 23 Router(config)# access-list 100 permit tcp any any eq 25 Router(config)# access-list 100 permit tcp any any eq 53 Router(config)# access-list 100 permit tcp any any eq 80 Router(config)# access-list 100 permit tcp any any eq 110 Router(config)# access-list 100 permit tcp any any eq 143 Router(config)# access-list 100 permit tcp any any eq 443 Router(config)# access-list 100 permit udp any any eq 53 Router(config)# access-list 100 permit udp any any eq 161 Router(config)# access-list 100 permit tcp any any eq 3306 Router(config)# access-list 100 permit icmp any any echo Router(config)# access-list 100 deny ip any any Router(config)# int f0 Router(config-if)# ip access-group 100 in This case : have inside (internal server) Server IP for this case as below : Web Serve

Testkingworld.com 640-802 Practice Questions are designed with questions, coupled with precise, logical and verified answer. testkingworld.com's 640-802 practice exam provides you with an examination experience like no other. To take a more authentic exam, you would have to take the exam itself, in an exam center! Furthermore our Cisco 640-802 braindumps exam is always updated to provide you the most actual information available and this is done with the help of our testking professionals team of certification experts, technical staff, and comprehensive language masters who are always in-touch with the changes in the 640-802 exam. So the true way for passing the 640-802 exam is to get in-touch with the testking to obtain the certification exam questions that will lead to your certification success. Easiest way to get these certifications is to log on to the 640-802 testking and download the 640-802 test questions to do Cisco 640-802 practice exam to obtain your free 640-802 exam ce

Click on image to view full image Hostname : localhost or 127.0.0.1 Port R1 : 1 Port R2 : 2 Port R3 : 3 Port R4 : 4 Port R5 : 5 Port R6 : 6 Port R7 : 7 Port Sw1 : 8 Port Sw2 : 9 Config Router Config R1 Current configuration : 1155 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef ! ! no ip domain lookup ! ! ! ! interface Loopback0 ip address 144.44.1.1 255.255.255.0 ! interface Loopback1 ip address 144.44.3.1 255.255.255.0 ! interface Loopback2 ip address 144.44.2.1 255.255.255.0 ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 ip address 144.44.4.1 255.255.255.0 serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address

There are five passwords used to secure your Cisco routers: console, auxiliary, telnet (VTY), enable password, and enable secret. Just as you learned earlier in the chapter, the first two passwords are used to set your enable password that’s used to secure privileged mode. This will prompt a user for a password when the enable command is used. The other three are used to configure a password when user mode is accessed either through the console port, through the auxiliary port, or via Telnet. Enable Passwords You can set the enable passwords from global configuration mode like this: Router(config)#enable ? last-resort Define enable action if no TACACS servers respond password Assign the privileged level password secret Assign the privileged level secret use-tacacs Use TACACS to check enable passwords The following points describe the enable password parameters: Last-resort Allows you to still enter the router if you set up authentication through a TACACS server and it’s not avail

LAN switch types decide how a frame is handled when it’s received on a switch port. Latency– the time it takes for a frame to be sent out an exit port once the switch receives the frame– depends on the chosen switching mode. There are three switching modes: Cut-through (FastForward) When in this mode, the switch only waits for the destination hardware address to be received before it looks up the destination address in the MAC filter table. Cisco sometimes calls this the FastForward method. FragmentFree (modified cut-through) This is the default mode for the Catalyst 1900 switch, and it’s sometimes referred to as modified cut-through. In FragmentFree mode, the switch checks the first 64 bytes of a frame before forwarding it for fragmentation, thus guarding against forwarding runts, which are caused by collisions. Store-and-forward In this mode, the complete data frame is received on the switch’s buffer, a CRC is run, and, if the CRC passes, the switch looks up the destination addres

Telnet, part of the TCP/IP protocol suite, is a virtual terminal protocol that allows you to make connections to remote devices, gather information, and run programs. After your routers and switches are configured, you can use the Telnet program to reconfigure and/or check up on your routers and switches without using a console cable. You run the Telnet program by typing telnet from any command prompt (DOS or Cisco). You need to have VTY passwords set on the routers for this to work. Remember, you can’t use CDP to gather information about routers and switches that aren’t directly connected to your device. But you can use the Telnet application to connect to your neighbor devices, and then run CDP on those remote devices to get information on them. You can issue the telnet command from any router prompt like this: RouterA#telnet 172.16.10.2 Trying 172.16.10.2 … Open Password required, but none set [Connection to 172.16.10.2 closed by foreign host] RouterA# As you can see, I didn’t set m

In the previous section we reviewed several aspects of the Transport Layer. We learned a great deal of information; covering sockets, ports, TCP, UDP, segments, and datagrams. Now we will take a look at the fourth and final layer of the TCP/IP stack: the Application Layer. What Does The Application Layer Do? A lot of newcomers to TCP/IP wonder why an Application Layer is needed, since the Transport Layer handles a lot of interfacing between the network and applications. While this is true, the Application Layer focuses more on network services, APIs, utilities, and operating system environments. If you know the TCP/IP stack and OSI model well enough, you’ll know that there are three OSI model layers that correspond to the TCP/IP Application Layer. By breaking the TCP/IP Application Layer into three separate layers, we can better understand what responsibilities the Application Layer actually has. The OSI Equivalent of the TCP/IP Application Layer 1. Application Layer - The sev

If 90% of all problems in a network are on the Physical Layer, then it isn’t any surprise that cable testing has become quite important in the industry. And although it may sound simple to test a pair of cables for faults, actually troubleshooting wire maps, crosstalk, propagation delay, or insertion loss can be more than headache-worthy. And thus, understanding how to troubleshoot these problems saves time, yet also supplies good information to prevent common mistakes in the future. How to Avoid Crosstalk You’ll come to find that the most common mistakes are usually the simplest to avoid. For instance, crosstalk is very commonly created when connectors are not installed properly at both ends of the cable. Crosstalk is the effect we get when electromagnetic energy from one cable leaves an imprint on adjacent cables. (You’ll often see this referred to as “noise.”)This usually isn’t a problem, however, since we twist wires inside Ethernet cable to cancel out this effect. So how, t

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