How to configure IPv6 Static Route

<br> <br> <h1> <span class="notranslate"><span style="background: #E6ECF9;"></span></span> </h1> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <br></div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , "serif"; font-size: 12.0pt;">In order to address the IPv6-oriented configuration of a router in a simple way, we will see in this article how to configure a router using IPv6 addressing and how  to configure IPv6 Static Route.</span></div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , "serif"; font-size: 12.0pt;"></span></div>

How to configure IPv6 Static Route

In order to address the IPv6-oriented configuration of a router in a simple way, we will see in this article how to configure a ro...

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Fundamental of Switching - MAC Address Table & Content-Addressable Memory (CAM)

<br> <br> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0Ct1TgiBE26dFarIWy-N84Aq7aU2ezvlDegnU7MckmYQohm4u9Zt8fiEKXxBkKyOGKq6OiLBVM8HF0A_58HqKIRN67aSore96he-y9maBAfaAPsJodq92cM4RBIvbQqR5h-ygo5bR-E8/s1600/cisco-2950-switch-24ports.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="cisco-catalyst-2950-switch" border="0" data-original-height="259" data-original-width="800" height="103" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0Ct1TgiBE26dFarIWy-N84Aq7aU2ezvlDegnU7MckmYQohm4u9Zt8fiEKXxBkKyOGKq6OiLBVM8HF0A_58HqKIRN67aSore96he-y9maBAfaAPsJodq92cM4RBIvbQqR5h-ygo5bR-E8/s320/cisco-2950-switch-24ports.jpg" title="cisco-catalyst-2950-switch" width="320"></a><span class="notranslate">An Ethernet switch (or switch) is a device that connects several segments ( cable or physical link) of a network.</span> <span class="notranslate">This is a level 2 device (OSI model data link layer), which means that it does not just propagate a signal like the HUB, but instead That it interprets this signal and uses the information contained in the header of the Ethernet frame to make its decisions.</span><br> <span class="notranslate"></span><br>

Fundamental of Switching - MAC Address Table & Content-Addressable Memory (CAM)

An Ethernet switch (or switch) is a device that connects several segments ( cable or physical link) of a network. This is a level 2 dev...

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Enhanced Interior Gateway Routing Protocol (EIGRP)

<div style="text-align: justify;"> <span style="font-family: "georgia" , "times new roman" , serif; font-size: large;"><span class="notranslate">Enhanced Interior Gateway Routing Protocol (EIGRP) is a routing protocol developed by Cisco.</span> <span class="notranslate">This article takes up the basics of its operation and configuration.</span></span></div> <div style="text-align: justify;"> <span class="notranslate"></span><br></div>

Enhanced Interior Gateway Routing Protocol (EIGRP)

Enhanced Interior Gateway Routing Protocol (EIGRP) is a routing protocol developed by Cisco. This article takes up the basics of its opera...

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How to configure advance trunk dot1q on Cisco Catalyst Switch

<span style="background-color: white;"></span><br> <br> <div style="background: white; margin-bottom: .0001pt; margin: 0in; vertical-align: baseline;"> <span class="notranslate"><span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">A trunk is a configuration of a link, usually between two switches but not only, allowing to carry the traffic of several VLANs there.</span></span><span class="apple-converted-space"><span style="color: #555555; font-family: "arial" , sans-serif; font-size: 10.5pt;"> </span></span><span style="font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit;"><span class="notranslate"><span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">On Cisco switches, by default all VLANs on the switches will be allowed to go through the trunk in question.</span></span></span><span style="font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit;"><span class="apple-converted-space"><span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;"> </span></span><span class="notranslate"><span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">However,</span></span><span class="notranslate"><span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;"> it is sometimes necessary, from a security point of view but also performance, to limit the propagation of VLANs on certain links ... Here is How to configure trunk on Cisco Catalyst Switch</span></span></span><br> </div>

How to configure advance trunk dot1q on Cisco Catalyst Switch

A trunk is a configuration of a link, usually between two switches but not only, allowing to carry the traffic of several VLANs there. ...

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how to configure Native VLAN on a Trunk Links

<br> <br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">As a reminder, a trunk is a link intended to convey the traffic of several VLANs. Since a standard Ethernet frame does not have information about the VLAN from which it originates, it is necessary to add this information via a protocol. </span><br> </div>

how to configure Native VLAN on a Trunk Links

As a reminder, a trunk is a link intended to convey the traffic of several VLANs. Since a standard Ethernet frame does not have informati...

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What is link layer discovery protocol (LLDP)

<br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">LLDP is a standardized network discovery protocol (IEEE 802.1AB) designed to supplement the multitude of proprietary protocols of the same type (Cisco Discovery Protocol, Nortel Discovery Protocol, etc.) and to allow equipment of different manufacturers to discover mutually. </span><br> </div>

What is link layer discovery protocol (LLDP)

LLDP is a standardized network discovery protocol (IEEE 802.1AB) designed to supplement the multitude of proprietary protocols of the sa...

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OSPF over Frame-Relay: Non-Broadcast

<br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">Here is the fourth part of the configuration of our OSPF lab. In this article, we will discuss how to configure OSPF to work on a Frame-Relay network in a Hub & Spoke topology ... </span><br> </div>

OSPF over Frame-Relay: Non-Broadcast

Here is the fourth part of the configuration of our OSPF lab. In this article, we will discuss how to configure OSPF to work on a Frame-...

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Spanning-Tree Protocol(STP): Port cost vs Port priority

<br> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">When Spanning-Tree (STP) solves a loop in a network of switches, it follows a series of parameters to determine the best path to the Root Bridge, this "path" will be identified on each switch By the Root Port ... </span><br>

Spanning-Tree Protocol(STP): Port cost vs Port priority

When Spanning-Tree (STP) solves a loop in a network of switches, it follows a series of parameters to determine the best path to the Root B...

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OSPF Virtual Link

<span style="font-family: "times new roman" , serif; font-size: 12pt;">Here is the third part of the configuration of our OSPF lab. The </span><a href="https://ciscoarticleandcertification.blogspot.com/2017/03/how-to-configure-multi-area-ospf.html" style="font-family: "times new roman", serif; font-size: 12pt;" target="_blank">continuation of the last article</a><span style="font-family: "times new roman" , serif; font-size: 12pt;">. After configuring the area 0, the area 10 with the redistribution of EIGRP and the area 23, this time we will attack the configuration of the area 30, which, unlike the OSPF logic and is not related to area 0. In other words, this article will mainly talk about setting up a OSPF Virtual Link.</span><br>

OSPF Virtual Link

Here is the third part of the configuration of our OSPF lab. The continuation of the last article . After configuring the area 0, the area 1...

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How to configure Multi-area OSPF

<span style="background-color: white; border: 1pt none; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">This article is the second (but not the last) part of the OSPF lab configuration presented in the previous article(<a href="https://ciscoarticleandcertification.blogspot.com/2017/02/ospf-lab-part-1-on-gns3.html" target="_blank">Configuring OSPF in a single area</a>).</span><span style="background-color: white; font-family: "arial" , sans-serif; font-size: 10.5pt;"> </span><span style="background-color: white; border: 1pt none; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">This time we will configure the "secondary" areas (area 10 and 23) leaving area 30 next time.</span><br>

How to configure Multi-area OSPF

This article is the second (but not the last) part of the OSPF lab configuration presented in the previous article( Configuring OSPF in a si...

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How to configure DHCP on a Cisco router

<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">The DHCP (Dynamic Host Configuration Protocol) protocol is a feature to provide machines that require a full IP, IPv4 address, subnet mask, default gateway, dns server... </span><br> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">This article is about <span style="font-family: "times new roman" , serif;">How to </span></span><span style="font-family: "times new roman" , serif; font-size: 12pt;"><span style="font-family: "times new roman" , serif;">configure DHCP on a Cisco router.</span></span><br> </div>

How to configure DHCP on a Cisco router

The DHCP (Dynamic Host Configuration Protocol) protocol is a feature to provide machines that require a full IP, IPv4 address, subnet mask,...

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VLAN Access-List

<div class="MsoNormal"> <span style="font-family: "arial" , sans-serif; font-size: 12.0pt; line-height: 107%;">ACLs (Access Control Lists) traditional, sometimes also called RACL (Router-based ACL) allow us to filter traffic that passes from one network to another, so in the case of VLANs, … the traffic that is routed from one VLAN to another. In no case, they do not allow you to filter the traffic that flows within a VLAN. Yet … it is feasible…</span><br> </div>

VLAN Access-List

ACLs (Access Control Lists) traditional, sometimes also called RACL (Router-based ACL) allow us to filter traffic that passes from one netw...

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How to configure trunk port on cisco switches

<b><span style="font-size: x-large;">A trunk, what is it?</span></b><br> <div class="MsoNormal"> A trunk is a link between two devices, him more often between two switch, configured so that you can move frames Ethernet modified comprising information on the VLAN on which they pass.</div> <div class="MsoNormal">  How to configure trunk port on cisco switches, two switch are connected one to the other, each having been configured with 2 VLANS, VLAN 1 and VLAN 2...<br> </div>

How to configure trunk port on cisco switches

A trunk, what is it? A trunk is a link between two devices, him more often between two switch, configured so that you can move frames Ethe...

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How to Configure NAT on a Cisco Router

<br> <div class="MsoNormal" style="background: white; line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; vertical-align: baseline;"> <span style="border: none 1.0pt; color: #555555; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;"><br></span></div> <div class="MsoNormal" style="background: white; line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; vertical-align: baseline;"> <span style="border: 1pt none; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">When it comes to interconnecting a private network (whether corporate or private) in IPv4, it is virtually impossible to do without NAT.</span><span style="font-family: "arial" , sans-serif; font-size: 10.5pt;"> </span><span style="border: 1pt none; font-family: "inherit" , serif; font-size: 10.5pt; padding: 0in;">Here is a configuration that takes up the essentials of the three main types of NAT that can be configured, namely:</span><br> </div>

How to Configure NAT on a Cisco Router

When it comes to interconnecting a private network (whether corporate or private) in IPv4, it is virtually impossible to do without NA...

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Gateway Load-Balancing Protocol(GLBP)

<br> <br> <div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">After <a href="https://ciscoarticleandcertification.blogspot.com/2017/02/hot-standby-router-protocolhsrp.html" target="_blank">HSRP</a> and <a href="https://ciscoarticleandcertification.blogspot.com/2017/02/virtual-router-redundancy-protocolvrrp.html" target="_blank">VRRP</a>, it is time to introduce the next generation of Protocol that supports redundancy of gateways: GLBP...</span><br> </div>

Gateway Load-Balancing Protocol(GLBP)

After HSRP and VRRP , it is time to introduce the next generation of Protocol that supports redundancy of gateways: GLBP...

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What is Virtual Router Redundancy Protocol(VRRP)

<br> <span style="font-family: "times new roman" , "serif"; font-size: 12.0pt;">In the previous article we saw a simple implementation of <a href="https://ciscoarticleandcertification.blogspot.com/2017/02/hot-standby-router-protocolhsrp.html" target="_blank">HSRP</a> which allows to manage gateway redundancy (among others). Although simple to set up,<a href="https://ciscoarticleandcertification.blogspot.com/2017/02/hot-standby-router-protocolhsrp.html" target="_blank"> HSRP</a> has the main defect of being Cisco owner. Here is an equivalent implementation of VRRP, standard protocol </span><br> <span style="font-family: "times new roman" , "serif"; font-size: 12.0pt;"> </span><span style="font-family: "times new roman" , "serif"; font-size: 12.0pt;">"What is the difference between HSRP and VRRP<span style="font-family: "times new roman" , "serif";">",i</span>n order to allow an easy comparison with HSRP, I kept the same structure for the article. </span><br>

What is Virtual Router Redundancy Protocol(VRRP)

In the previous article we saw a simple implementation of HSRP which allows to manage gateway redundancy (among others). Although simple t...

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Hot Standby Router Protocol(HSRP)

<br> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">On a PC one usually configures a single gateway by default ... But what happens if it is out of order? ... The answer is simple ... no way to communicate outside its domain of diffusion. To remedy this, there are several ways to manage gateway redundancy including HSRP, <a href="https://ciscoarticleandcertification.blogspot.com/2017/02/virtual-router-redundancy-protocolvrrp.html" target="_blank">VRRP</a>, and <a href="https://ciscoarticleandcertification.blogspot.com/2017/02/gateway-load-balancing-protocolglbp.html" target="_blank">GLBP</a>. </span><br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">Here is a simple example of setting up gateway redundancy using HSRP. However, it is important to note that this is a proprietary Cisco protocol. </span><br> </div>

Hot Standby Router Protocol(HSRP)

On a PC one usually configures a single gateway by default ... But what happens if it is out of order? ... The answer is simple ... no way ...

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How to Configure Multilink PPP Connections for Serial interfaces

<br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; mso-outline-level: 2;"> </div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; mso-outline-level: 2;"> </div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; mso-outline-level: 2;"> <b><span style="font-family: "times new roman" , serif; font-size: 18.0pt;">What is Multilink PPP? </span></b></div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">This is a standard protocol that allows the aggregation of PPP links into a single PPP link. The bundled links can be of any type, ISDN, T1, or any other type that supports the basic PPP protocol. The multilink configuration must be done on both sides of the link, which implies that the different links must connect the same two equipment.</span><br> </div>

How to Configure Multilink PPP Connections for Serial interfaces

What is Multilink PPP? This is a standard protocol that allows the aggregation of PPP links into a single PPP link. The bundled link...

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What is IPv6 (Internet Protocol Version 6)

<br> <br> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">This is not a scoop, public IPv4 address space melts like snow in the sun. According to current estimates, only 5% of all addresses would be available </span></div> <div class="MsoNormal" style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">One day or another, the transition to IPv6 will be inevitable, so be prepared ... </span><br> <span style="font-family: "times new roman" , serif; font-size: 12.0pt;">This article explain what is IPv6 and how it works.</span><br> </div>

What is IPv6 (Internet Protocol Version 6)

This is not a scoop, public IPv4 address space melts like snow in the sun. According to current estimates, only 5% of all addresses wou...

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how to Configure OSPF in a Single Area

<div class="MsoNormal"> First lab dedicated to Configuring OSPF in a Single Area. It is the beginning of a series which will aim to establish a relatively advanced OSPF configuration. Each item will add a series of configurations to the previous.<br> </div>

how to Configure OSPF in a Single Area

First lab dedicated to Configuring OSPF in a Single Area. It is the beginning of a series which will aim to establish a relatively advanced...

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Inter VLAN Routing

<div dir="ltr" style="text-align: left;" trbidi="on"> <div class="MsoListParagraphCxSpFirst" style="direction: ltr; margin-right: 0in; text-align: left; unicode-bidi: embed;"> <span style="font-family: "arial" , "sans-serif";">Routing between LANs or Inter<span style="font-family: "arial" , "sans-serif";"> </span>VLAN routing ... same fight! For a router to route a packet from one broadcast domain to another it must have an interface configured in each of them</span><br> </div></div>

Inter VLAN Routing

Routing between LANs or Inter VLAN routing ... same fight! For a router to route a packet from one broadcast domain to another it must ha...

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