How to Saving your Cisco Router configuration

How to  Saving your Cisco Router configurationOnce complete configure router, then it need to save  because if you forget to save configuration then ,it works normally as configured but when a router restart then it can't lode again configuration from start up config.because router ram is volatile ram means once power off the data will erace.so it must need to save configuration in memory below command of save router configuration in permanent memoryExample  :-cisco 1700#copy running-config start up-configAfter performing this command a  configuration is now saved to non-volatile RAM(NVRAM).can also check from command show start up configExample :- cisco 1700#show startup-con...

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Checking a connectivity in Network

 Checking a  connectivity in Network   when network is running mode their is every possibility to fail your network devices,so when ever your  Network device act as ab normal and in some of Cased ,i found that Network is down that are not ping or able to Transfer a date but in telnet the interface shown up,but in actual mode that is down.so at that time just power off  router and re insert the interface card. which shown active but not actually up .this is problem of interface hang in some cases router interface hang due to temperature.because 24 hour on so it need cool temperature.this same issues creates in other devices like modems and switch.all my working time i faced this kind of issues so.One most useful and simple diagnostic tool is the ping command....

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Troubleshooting your Cisco router

Troubleshooting your Cisco routersome of issue at Network device,that are common. Many time  it's Network Related issues like some power off,or interface cable are un-pluged come these are the common physical issu. but when ever notice any issur regarding router or user that is connected to router that can not reach a any destination,or any destinattion at all. we will need to check  how the router is attempting to route traffic . Then follow some command . Router7206#show interfaces  for checking any Connected interface down or ActiveRouter7206# #showip protocols Router7206##showip route Router7206##showip...

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Configuring a Router

Configuring a Router  At the Router confuguration time take a router when you don't know .wht configuration is in router.it's previously used or not.configuration saved or not or it's blank and new for solution all these question here there are some cisco command for showing the status of the network devices router & Switch .at any point of configuration point try out the following commands:Router#show interfaces  //it will shows all set Configured or non configurated informationRouter#showip protocols //  Sh ip informatiion Router#showip route  // Show Possible route connectedRouter#showiparp   // Sh MAC Information from Ip Address.Router#show interfaces  //it will shows all set Configured...

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Network Cables Color code

Straight Cable Cable (Ethernet Cable color code)(1)orange white (2)orange (3)green white(4)blue(5)blue white(6)green (7)Brown(8)Brown whiteCross CableGreen whitegreenorange whiteblueblue whiteorangeBrownBrown wh...

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Wireless LAN Standards and Authentication-For Secure wireless Network

 Wireless LAN Standards and Authentication   The WLAN standards & applying methods.Standards that Fallow set of rules &   provide security for wireless networks .it’s one types of algorithms Designed.it    gives uniq identity to it’s users & secure the wireless network.    Wired Equivalent Privacy (WEP)    Wi-Fi Protected Access (WPA)    Wi-Fi Protected Access 2 (WPA2) or 802.11i .See Vedio tutorial to how to apply W...

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Assigning a trunk port to Switch & Router in beetween.

Assigning a trunk port to Switch & Router in beetween.here we configured 0/2 as trunk port. in inter vlan routing talking, there are some encapsulation methods. no 1. is 802.1Q or dot1q  and 2 is ISL it's Ciso proprietary  only for Cisco devices while  802.1Q or dot1q  for supports    the multi-vendor encapsulation method.here we taken cisco 2950 switch that  support dot1q Encapsulation methodNext is to define the native VLAN and if you want to, you can define whichVLANs are allowed to cross that trunk port, See below commandC2950 (config-if)# switchport trunk native vlan 2C2950 (config-if)# switchport trunk allowed vlan add  2, 3, 4, 5 Assign Switch ports to Vlan by commandC2950 (config)# interface fa0/2C2950 (config-if)# switchport mode...

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InterVLAN routing Configuration

 InterVLAN routing Configurationconfiguration they will talk or tranfrer data connected to all devices in same switch or in network.but when in switch we create vlan then divided in to subdomain or subnetworks so without any By defaultin swithc there are one vlan and it's all ports are in same vlan so without any layer three device two diffrent vlant can not tranfer information or talk each other also they cant transfer information in other network.thay only can talk or transfer information which is in same vlan or same sub twork.here we r doing inter vlan routing.Configuration of router for interVLAN routing    for when we wannt to talk 2 different vlan in network then intervlan routing is needed. appropriate VLANs back through the same line.the...

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Now Assigning a trunk port to Switch & Router in beetween.

To configure the trunk port to connect to the router and for accessing Data,The trunk is needed to carry all VLANs or selected VLANs Data trafrering beetween all switches connected with the same networks.here we configure the FastEthernet port 0/2 of switch 2950 to routere's fa0/0 as a trunk  port & Trunk link that connects Each other.C2950> enableC2950# configure terminalC2950 (config)# interface fa0/2C2950 (config-if)# switchport mode tr...

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Creating Vlan With Cisco 2950

In Networking the term Vlan,it's a  Broadcast domain we all know wht is the use of vlan.now i here i give below how to configure & vlan and intervlan routing labs.here i taken on cisco 2950.it's managable switch,now, in switch we assume that it's initially configured like,vty terminal ,line consol 0 end .so now  here,we create some vlan here. Managment,sells,marketing and it.C2950> enableC2950# configure terminalC2950 (config)# vlan 2C2950 (config-vlan)# name MANAGEMENTC2950 (config-vlan)# vlan 3C2950 (config-vlan)# name sellsC2950 (config-vlan)# vlan 4C2950 (config-vlan)# name MarketingC2950 (config-vlan)# vlan 5C2950 (config-vlan)# name...

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