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NAT PAT Configuration Packet Tracer

by ShahedMarch 7, 2011October 30, 20150

NAT PAT Configuration Packet Tracer Today i will discuss how to configure NAT PAT Configuration Packet Tracer simulator. Network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device. [boxads] There are two different types of NAT: NAT Static NAT: The simplest type of NAT provides a one-to-one translation of IP addresses. It is often also referred to as one-to-one NAT. In this type of NAT only the IP addresses, IP header checksum and any higher level checksums that include the IP address need to be changed. …

by ShahedMarch 5, 2011October 29, 20150

Cisco ROMmon Recovery Procedure: Today i will discuss cisco rommon recovery procedure step by step. so lets go……….. 1. Start the TFTP server (make sure the file path is correct and that you allow both transfer and receive) 2. Connect to the router via Ethernet cable (an Ethernet cable is preferred due to the large size of the file and the maximum speed that data can travel over the console cable) [boxads] N.B: Before the IOS is loaded it is important to make sure that your router has enough memory to support the IOS. The router will allow an IOS …

by ShahedMarch 5, 2011October 29, 20154

Initial configuration of CISCO Router: Initial configuration of CISCO Router: At first power on your router & connect console cable to router console port. then use bellow command [boxads] Router>enable Router#conf t Router(config)# Now copy and past below command after change [xxxxxxx] this portion as your requirement. hostname Router_Name enable secret xxxxxxx username xxxxxx privilege 15 secret xxxxxxxx username xxxxxx privilege 3 secret xxxxxxx interface FastEthernet0/0 des ” Local OM Interface” ip address 1.1.1.1 255.255.255.0 no shutdown full-duplex exit

by ShahedMarch 3, 2011October 26, 20150

Initial configuration CISCO Router: At first power on your router & connect console cable to router console port. then use bellow command……………… [boxads] Router>enable Router#conf t Router(config)# Now copy and past below command after change [xxxxxxx] this portion as your requirement. hostname Router_Name enable secret xxxxxxx username xxxxxx privilege 15 secret xxxxxxxx username xxxxxx privilege 3 secret xxxxxxx interface FastEthernet0/0 des ” Local OM Interface” ip address 1.1.x.x 255.255.x.x no shutdown full-duplex exit

by ShahedMarch 3, 2011October 26, 20150

IOS upgrade CISCO Router: Install TFTP server on your PC/Laptop. Then keep your updated IOS on “C:TFTP-Root” directory & set ip and subnet mask on your NIC card. Here i use: 1.1.1.10 255.255.255.0 ip of my pc. [boxads] Router#sh flash: System flash directory: File Length Name/status 1 33725096 asr901-universalk9-mz.152-2.SNI.bin 2 1180 CAT1811U22B_1396860941.lic [33726404 bytes used, 66674744 available, 100401148 total] 98304K bytes of processor board System flash (Read/Write) [bodyads] Router# Router#erase flash: Erasing the flash filesystem will remove all files! Continue? [confirm] Erasing device… eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeee …erased

by ShahedMarch 3, 2011October 29, 20152

Reset Cisco Router password: Today i will discuss how to reset Cisco Router password. so follow bellow steps……….. [boxads] Step-1. Reboot your router first, when it rebooting attempt to break into ROM Monitor (ROMmon) by issuing the break sequence (usually Ctrl and break from the Hyperterminal) from a console connection. Refer to: Cisco Standard Break Key Combinations You should see this ROMmon prompt: rommon 1> Step-2. Change the configure register value to ignore the startup configuration by issuing the confreg command, as shown in this example: rommon 1> confreg 0x2142 Step-3. To reload the router, issue the reset command, as …