If the physical layer is up, but the data link layer is down, then there may be a connection problem related to say Ethernet. Enters line configuration mode, and specifies the type of line. If you want to configure specific components, then you would have to go into that components configuration mode from global configuration. Example: Router(config)# password 5dr4Hepw3. Specifies a unique password for the console terminal line. Router#copy running-config startup-config. We Provide Technical Tutorials and Configuration Examples about TCP/IP Networks with focus on Cisco Products and Technologies. Router (config-line)#password console. [Save the running … This password overrides the enable password and is encypted within the config file, Set the clock rate for a router with a DCE cable to 64K, Set a logical bandwidth assignment of 64K to the serial interface, To enable RIP on all 172.16.x.y interfaces, To enable IRGP with a AS of 200, to all interfaces, Static route the remote network is 172.16.1.0, with a mask of 255.255.255.0, the next hop is 172.16.2.1, at a cost of 5 hops, Shows all logs that the router has in its memory, View the interface status of interface e0, show controllers 0 (note the space between the 's' and the '0'), Display a summary of connected cdp devices, Display detailed information on all devices, Display access lists, this includes the number NVRAM, Merge TFTP configuration with current router End with CNTL/Z.Router(config)#int fa 0Router(config-if)#Router(config-if)#sh ip int brie                                  ^% Invalid input detected at '^' marker.Router(config-if)#do sh ip int brieInterface                  IP-Address      OK? Useful stuff. This is again what is called the startup configuration. This command will help you save those configurations into NVRAM and it is recommended to use it frequently, especially during change management. <0-2147483> Timeout in seconds , Branch(config-line)#exec-timeout 20 30 ? Interfaces are the door to other networks and are one of the things that makes the router a router, the device capable of connecting multiple segments, so their configuration is going to be critical. We DO NOT provide braindumps! The basic CLI modes that we will be referring below are as following: Router> <– User EXEC Mode. Cisco Router Show Commands - Handy show commands to check on the status of interfaces. Step 3. password password. The mask tells the router how to read the IP address and understand in terms of networks and hosts. Following proper design guidelines you should reach a consensus in terms of how IP addresses are going to be allocated and assigned to different segments and hosts in the network. Now from here, we cannot do show commands initially because those belong to the EXEC mode and we are in interface configuration mode. When you boot up your Cisco router for the first time, you notice some basic configuration has already been performed. The first command there could mitigate the exposure caused by lack of physical security. The router’s IP addresses will also sometimes serve as a default gateway to configure on other devices and hosts. Command. Let's move on. Setting the IP address includes setting of the address itself plus the mask. So, if I do that and start looking it up, I can use the keywords to abort, which are Ctrl-Shift-6, and that thing aborts certain commands like this translation, and also ping and trace for testing. For example, when you are troubleshooting a router, you may enable a good number of messages to be displayed on the console, so that you can see what is going on. Interfaces have multiple statuses, and they relate to layers 1 and 2 in the display of our commands. In order to help us complete the basic configuration of our Cisco routers, this lesson introduces the use of configuration modes, and how they interact to help us configure the router from the command-line interface (CLI). In example, the console connection will time out and relogin the users after 20 minutes and 30 seconds. If you want to navigate between second level configuration modes, then you can do so without having to go back to global configuration mode. So, if I do things like show ip int brief from here, it says no, you can’t because it is not available in this mode. Branch(config)#Branch(config)#line vty 0 4Branch(config-line)#exec-timeout ? Method Status                Protocol, FastEthernet0/0            192.168.10.1    YES manual up                    up, FastEthernet0/1            10.1.5.2        YES manual up                    up, Interface                      Status         Protocol Description, Fa0/0                          up             up       ### LAN ###, Fa0/1                          up             up       ### Internet ###, How to Set User and Password on Cisco Router, Medium-size Switched Network Construction. For example, the host name of the router will be used as your router prompt. It is very important to be able to identify quickly the various components of our configuration. In modular routers, the interface identifier depends on the location of the interface in terms of the various slots and modules in the router chassis. Now, if I wanted to navigate and move back and forth, I can use the exit command to go back one level or one section.