Category Archives: CCNA

In this category CCNA related articles will be displayed. ccna is a very useful source to earn money. all ccna related notes are published in this category and you will be learn ccna from here easily without difficulties. all top ccna related posts will be here in this category.

How to configure PAgP (Port Aggregation Protocol) on cisco switches

This article is all about how to configure PAGP (Port Aggregation Protocol) on cisco switches. We all know that there are total three methods are present to configure EtherChannel in cisco switches. That are static, PAgP and LACP. In the previous tutorial, we configure EtherChannel on switches using the static method. Now in this tutorial, we use PAgP method to configure EtherChannel on cisco switches. Continue reading How to configure PAgP (Port Aggregation Protocol) on cisco switches

Understand how to configure backup route on cisco routers

This article is all about how to configure a backup route on cisco routers. In this tutorial, we learn about how to configure a backup route on routers, why we use a backup route, where we use a backup route and features of a backup route. We generally use a backup route in companies because the backup router allows the routing device to install a backup route to the management network before the routing protocol process is up and running. If somehow a router’s dynamic protocol gets a problem, it’s a good idea to have a backup route. Continue reading Understand how to configure backup route on cisco routers

How to automatic secure your router using auto secure feature

This article is all about how to automatic secure your router using the auto secure feature in it. In this tutorial, we learn about how to secure your router even without having basic knowledge of the router security. By using the auto secure feature we can secure a router even without knowing how to configure telnet or how to enable password on routers. This auto secure feature is also a very useful feature for newcomers who don’t have an idea about how to configure your router securely and you can easily provide security to your router. In general, if you want to secure a router easily then you need to read the whole book on the router just to secure your router easily. But if you don’t want to read a whole book on the router and simply secure a router with ease then this auto secure feature is very useful for you. Cisco introduces the auto secure feature to quickly harden router configuration files in an automated fashion. This is a quick and simple way to secure a router without having basic knowledge about routers. So, let’s start here how to configure a router using the auto secure feature.

Continue reading How to automatic secure your router using auto secure feature

How to use CDP(Cisco Discovery Protocol) on cisco routers

This article is all about how to use CDP(Cisco Discovery Protocol) on cisco routers. CDP stands for cisco discovery protocol designed by Cisco company to help the network administrators. In this tutorial, we learn about how to turn on or turn off CDP advertisement on the routers, why we use CDP and as well as see the information of directly and indirectly connected devices. By using CDP you can collect information about both locally attached devices and remote devices. CDP is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address also. CDP can also be used for On-Demand Routing, which is a method of including routing information in CDP announcements so that dynamic routing protocols do not need to be used in simple networks. In this article, we will also learn about how to see ios version of neighbor routers and directly connected routers. So let’s start here how to configure CDP(Cisco Discovery Protocol) on cisco routers.

Continue reading How to use CDP(Cisco Discovery Protocol) on cisco routers

How to configure Etherchannel on cisco switches

This article is all about how to configure EtherChannel on cisco switches. In this tutorial, we learn about how EherChannel works, how to configure EtherChannel, why we configure EtherChannel and uses of EtherChannel on cisco switches. EtherChannel is a technique in which we combine two and more than two physical interfaces (ethernet ports) of the cisco switches. After that use them as a single logical interface(port). EtherChannel provides incremental trunk speeds between Fast Ethernet, Gigabit Ethernet, and 10 Gigabit ethernet.  By using EtherChannel we can combine the bandwidth of multiple ports. It also provides redundancy because if any port fails then still there is no connection loss. If one port fails then another port still active and provide communication and hence provide redundancy. Always remember that in windows EtherChannel technique is known as NIC Teaming and In Linux, this is known as Ethernet Bridging. So let’s start here how we configure EtherChannel on cisco switches.

Continue reading How to configure Etherchannel on cisco switches

How to configure CHAP {Challenge-Handshake Authentication Protocol} on cisco routers

This article is all about how to configure CHAP {Challenge-Handshake Authentication Protocol} on cisco routers. In the previous article, we learn about PAP configuration on cisco routers. There is two point to point authentication protocols are present on the routers that are PAP and CHAP. But CHAP is more secure than PAP because in CHAP authentication protocol username and password are sent in encrypted form and in PAP authentication protocol username and password are sent in a plain text. So generally we use CHAP authentication protocol on routers rather than PAP for enhancing the security of your router. In this article, we also learn that what is CHAP and why we configure CHAP on routers. CHAP is an authentication protocol used by point to point protocol servers to validate the identity of the remote client. In CHAP authentication protocol we use the three-way handshake to verify a client’s identity. CHAP also sends challenges after a certain time to make sure that client has not been replaced by intruders. Generally, CHAP configured on routers because it provides protection against replay attacks by the peer through the use of an incrementally changing identifier of a variable change value. 

Continue reading How to configure CHAP {Challenge-Handshake Authentication Protocol} on cisco routers

How to configure null routing on cisco routers

This article is all about how to configure null routing on cisco routers in cisco packet tracer. In other words, null o routing is also known as black hole routing configuration over the cisco routers. In computer networking, a null route or black hole route is a network route that goes nowhere. Matching packets are dropped (ignored) rather than forwarded, acting as a kind of very limited firewall. Null routing is acting as a black hole on the routers because it sends unwanted packets from a certain network to black hole without reaching them to the receiver. it diverts all the packets to the black hole from where it never come back again. It is a type of trash or Recycles Bin for route packets. Basically, companies used this to drop some specific network to stop the DDOS attack. All the traffic from an unwanted network is sent to the null interface is discarded. Network admin used it to discard traffic simply by routing it to the null interface.

Continue reading How to configure null routing on cisco routers

How to configure static routing on routers along with switches

This article is all about how to configure static routing on cisco routers along with switches. In the previous posts in CCNA we learn many of things about routers and routing but we never learn about how to configure routing on routers along with switches. In this tutorial, we take routers and switches to understand this routing concept in a simple way with ease. In this tutorial, we learn some tricky static routing. Generally, we use routers to connect two different networks and switches in the same network to provide a medium to communicate PCs with each other. Here in this tutorial, we create a lab in which we mix routers and switches. After that configure static routing on routers to provide a medium to communicate between PCs which are in different networks and use switches to communicate PCs and routers in the same network. After reading this post you easily differentiate switches and routers and their work also. So let’s start here how to configure static routing on routers along with switches.

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How to configure PAP {Password Authentication Protocol} on cisco routers

This article is all about how to configure PAP on cisco routers. In the previous article, we learn about how to create VLANs on cisco switches. Now in this tutorial, we learn about routers and their protocols. PAP is an authentication method that can be used over Point to Point link. Here we read a word Authentication that means you can use authentication to verify a router’s identity when it is connecting into your router options for authentication including CHAP and PAP. There are two authentication methods are present such as CHAP and PAP that can be used over Point to Point links. PAP is a simple and less secure method in comparison to the CHAP. In PAP authentication method password and username are sent in plain text, there is no encryption or protection. If it is accepted then the connection is allowed. PAP authentication method goes through two-way handshake process but it is not considered as a strong authentication protocol. In CHAP authentication method there is three-way handshake process and username and password are sent in encrypted form but still, PAP is a useful method. So let’s start here how to configure PAP on cisco routers.

Continue reading How to configure PAP {Password Authentication Protocol} on cisco routers

Learn How to create VLANs on cisco switches

This article is all about how to create VLAN on cisco switches. In this tutorial, we learn basic concepts of VLANs like how to create VLAN, where we use VLANs, How to remove VLAN and How to create trunk in between two switches to communicate between our VLANs. Here we also learn that what are VLANs, why we use VLANs on switches etc. We all know that by default switches are worked on VLAN 1. In general words, we can say that VLAN is a broadcast domain which is formed by switches. Generally, we use VLANs for make a single switch into multiple virtual switches. VLAN is also useful when we are feeling a lot of broadcast traffic on our VLAN. In these cases, VLANs are a very useful option for switches. In the last, we create a trunk between two switches because without trunk creation we do not be able in to carry traffic from more than one VLAN. we also run troubleshooting commands on the switches to verify and troubleshoot our configuration easily on the switches. S0 let’s start here how to create VLANs on a cisco switch.

Continue reading Learn How to create VLANs on cisco switches