futurealert: Cisco Techniques

How to configure Intervlan

Inter Vlan is used to communicate between two different vlan's Steps to Create Intervlan: * Vlan database * Assigning Vlan to ports * Trunk between Switch to Router * Encapsulation<a href="http://www.futurealert.com/wp-content/uploads/2011/11/Pic1.jpg"><img alt="" class="aligncenter size-full wp-image-864" height="594" src="http://www.futurealert.com/wp-content/uploads/2011/11/Pic1.jpg" width="861" /></a> Step 1: Vlan Database:   Switch# Switch#enable Switch#vlan database Switch(vlan)#vlan 10 name cisco VLAN 10 added: Name: cisco Switch(vlan)#vlan 20 name MS VLAN 20 added: Name: MS Switch(vlan)#exit APPLY completed. Exiting....   Step 2: Adding Ports to Corresponding Vlan   Switch#configure terminal Switch(config)#interface fastethernet 0/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#interface fastethernet 0/2 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#interface fastethernet 0/3 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20 Switch(config-if)#interface fastethernet 0/4 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20   Step 3: Trunk between Switch to Router   Switch(config-if)#interface fastethernet 0/5 Switch(config-if)#switchport mode trunk Switch(config-if)#switchport trunk allow vlan all Switch(config-if)#exit   Step 4: Encapsulation on Router   Router>enable Router#config t Router(config)#interface fastEthernet 0/0 Router(config-if)#no shutdown Router(config-if)#interface fastEthernet 0/0.1 Router(config-subif)#encapsulation dot1Q 10 Router(config-subif)#ip address 192.168.10.1 255.255.255.0 Router(config-subif)#interface fastEthernet 0/0.2 Router(config-subif)#encapsulation dot1Q 20 Router(config-subif)#ip address 192.168.20.1 255.255.255.0 Router(config-subif)#exit Vlan 10 network 192.168.10.0 Vlan 20 network 192.168.20.0 To test ----> ping between two different networks.

How to configure Intervlan

Inter Vlan is used to communicate between two different vlan's Steps to Create Intervlan: * Vlan database * Assigning Vlan to ports * Tr...

How to: InterVlan routing Configuration

Inter Vlan is Used to Communicate Between two or more different Vlans. Network Devices in different Vlans cannot communicate with one another without help of  Router to route the data between Vlans. Types of vlan 1. Port based Vlan - Assign Vlan to Ports 2. Network Based Vlan - Assign vlan to Networks Steps to Configure Inter Vlan: 1. Vlan Database 2. Access Mode 3.Trunk Mode 4. Encapsulation   Step 1  Syntax to create a Vlan Database Switch>enable Switch#vlan database Switch(vlan)#vlan <no> name <anyname> Switch(vlan)#exit To verify Vlan Database Switch#show vlan brief   Step 2  Syntax to create Access Mode Switch>enable Switch#config t Switch(config)#interface fastEthernet <port no> Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan <no> Switch(config-if)#exit To Verify Switch#show vlan brief   Step 3  Syntax to create Trunk Mode Switch>enable Switch#config t Switch(config)#interface fastEthernet <portno> Switch(config-if)#switchport mode trunk Switch(config-if)#switchport trunk allowed vlan all Switch(config-if)#exit To Verify Trunk: Switch#show interfaces trunk   Step 4  Syntax to Create Encapsulation Router#enable Router#config t Router(config)#interface fastEthernet <port no> Router(config-if)#no shutdown Router(config)#interface fastEthernet <port no>.<sub-if no> Router(config-subif)#encapsulation dot1Q <vlan no> Router(config-subif)#ip address <gateway ip address> <subnet mask> Router(config-subif)#exit <Sub- if no> sub interface number range 1-65535  Here we configured as Vlan 10 accessing 192.168.10.0 network and Vlan 20 Accessing 192.168.20.0 <a href="http://www.futurealert.com/wp-content/uploads/2011/10/inter-vlan.jpg"><img alt="" class="aligncenter size-full wp-image-825" height="435" src="http://www.futurealert.com/wp-content/uploads/2011/10/inter-vlan.jpg" width="579" /></a> Creating Vlan For Creating VLan we need a Switch and PC PC1 --- ip 192.168.10.2   255.255.255.0 gw: 192.168.10.1 Pc2 --- ip 192.168.10.3   255.255.255.0 gw: 192.168.10.1 Pc3 --- ip 192.168.20.2   255.255.255.0 gw: 192.168.20.1 Pc4 --- ip 192.168.20.3   255.255.255.0 gw: 192.168.20.1 gw : Default Gateway Switch --- Cisco Catalyst 2950 Router --- Cisco 2503 cables used Twisted Pair Straight-trough to connect between Switch to PC and Switch to Router Switch Configuration Creating Vlan Database Switch>en Switch#vlan database Switch(vlan)#vlan 10 name cisco Switch(vlan)#vlan 20 name ms Switch(vlan)#exit Switch#show vlan brief VLAN Name                                   Status    Ports ---- -------------------------------- --------- ------------------------------- 1    default                                        active   Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 Fa0/21, Fa0/22, Fa0/23, Fa0/24 10   cisco                                        active 20   ms                                           active 1002 fddi-default                         active 1003 token-ring-default             active 1004 fddinet-default                   active 1005 trnet-default                       active Accessing Ports to VLAN Switch#config t Switch(config)#interface fastEthernet 0/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#interface fastEthernet 0/2 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#interface fastEthernet 0/3 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20 Switch(config-if)#interface fastEthernet 0/4 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20 Switch(config-if)#^Z Switch#show vlan brief VLAN Name                                    Status    Ports ---- -------------------------------- --------- ------------------------------- 1    default                                        active    Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 Fa0/21, Fa0/22, Fa0/23, Fa0/24 10   cisco                                           active    Fa0/1, Fa0/2 20   ms                                              active    Fa0/3, Fa0/4 1002 fddi-default                            active 1003 token-ring-default                active 1004 fddinet-default                      active 1005 trnet-default                           active Trunk Between Network Devices Switch>en Switch#config t Switch(config)#interface fastEthernet 0/5 Switch(config-if)#switchport mode trunk Switch(config-if)#switchport trunk allowed vlan all To verify trunk Switch#show interfaces trunk Port        Mode         Encapsulation  Status        Native vlan Fa0/5       on            802.1q                 trunking    1 Port        Vlans allowed on trunk Fa0/5       1-1005 Port        Vlans allowed and active in management domain Fa0/5       1 Port        Vlans in spanning tree forwarding state and not pruned Fa0/5       1 Encapsulation (Router) Router>en Router#config t Router(config)#interface fastEthernet 0/0 Router(config-if)#no shutdown Router(config-if)#interface fastEthernet 0/0.1 Router(config-subif)#encapsulation dot1Q 10 Router(config-subif)#ip address 192.168.10.1 255.255.255.0 Router(config-subif)#exit Router(config)#interface fastEthernet 0/0.2 Router(config-subif)#encapsulation dot1Q 20 Router(config-subif)#ip address 192.168.20.1 255.255.255.0 Router(config-subif)#exit Router#show running-config Building configuration... Current configuration : 783 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router . . . . interface FastEthernet0/0 no ip address duplex auto speed auto ! interface FastEthernet0/0.1 encapsulation dot1Q 10 ip address 192.168.10.1 255.255.255.0 ! interface FastEthernet0/0.2 encapsulation dot1Q 20 ip address 192.168.20.1 255.255.255.0 Result: All pcs Commuicate with each other.....

How to: InterVlan routing Configuration

Inter Vlan is Used to Communicate Between two or more different Vlans. Network Devices in different Vlans cannot communicate with one anothe...

The world "Internet" - Undersea Cable

The deep web: Incredible new map of the undersea cables that keep 99 per cent of the world clicking. The only time the world is even aware of the undersea cables that carry internet signals around the world is when they are cut off - such as when a cable connecting Europe to the Middle East failed last year, or when a trailing ship's anchor cut through a cable under the Indian ocean. Now, a new interactive map from Telegeography should help ships to steer clear of the multi-billion-dollar network of high-power cables through which 99 per cent of global internet traffic travels.   <a href="http://www.futurealert.com/wp-content/uploads/2011/09/1.jpg"><img alt="" class="aligncenter size-full wp-image-816" height="581" src="http://www.futurealert.com/wp-content/uploads/2011/09/1.jpg" width="964" /></a> Broadband under the sea: The cables that connect the continents The map - using info from the Global Bandwidth Research Service - shows the position of cables (both planned ones and ones currently on the sea bed), and lets you know their landing stations, who owns them, how long they are, and when they'll come into operation if they are not already. The version on Telegeography's site lets you click on any cable who find out more. Tim Stronge, of Telegeography, who created the map, says, 'Submarine cables are very expensive to build (generally ranging from $100m - $500m) but they deliver a huge amount of capacity.' 'Some of the older cables deliver only 20 Gbps - most of the new ones can deliver several terabits (terabit = 1,000 gigabit) of capacity,' says Stronge - home internet connections are typically between one and 50 megabits per second (a megabit being 1/1000th of a gigabit. <a href="http://www.futurealert.com/wp-content/uploads/2011/09/2.jpg"><img alt="" class="aligncenter size-full wp-image-817" height="648" src="http://www.futurealert.com/wp-content/uploads/2011/09/2.jpg" width="964" /></a> The Apollo cable - hidden under a Cornish beach - is one of Britain's main connections to America Each cable costs about $10m a year in maintenance costs -- the price operators have to pay to keep repair ships on standby, and other costs. If a cable breaks (which happens surprisingly frequently), the owner(s) of the cable also have to pay a repair ship to go out to sea and splice the cable, to the tune of $10,000 per day.' The cables themselves are often not much wider than garden hoses and contain fibre-optic lines which can each contain bandwidth for up to 20 million people. <a href="http://www.futurealert.com/wp-content/uploads/2011/09/3.jpg"><img alt="" class="aligncenter size-full wp-image-818" height="433" src="http://www.futurealert.com/wp-content/uploads/2011/09/3.jpg" width="964" /></a> New cables such as Apollo offer speeds in 'terabits' per second - each terabit is 1,000 gigabits, in turn 1,000 megabits. Home connections are often as slow one megabit One cable between the US and the UK carries 3.2 terabits of data per second - the 7,600 mile journey takes 0.00072 seconds. Data on newer, hi-tech internet cables is 'flashed' down the lines by high-powered lasers, and the intensity is maintained by electrical repeaters costing up to £1 million each. An electrical cable runs parallel to the fibre-optic line to power the repeaters. Failures can be catastrophic. One cable failure - between Sicily and Egypt - left more than 50 per cent of India without power in 2008, sending the country's computer industry and stock markets offline for hours.

The world "Internet" - Undersea Cable

The deep web: Incredible new map of the undersea cables that keep 99 per cent of the world clicking. The only time the world is even aware o...

Vlan Configuration

Welcome To VLAN Configuration, VLAN - Virtual Local Area Network allows to split a single Large lan into multiple small Vlans. Steps To Crea...

Cisco Switch L2

Switch is a Network Device it works in Layer 2(L2) - Data Link Layer. Normally two Types of Network Switches <ol> 	<li>Unmanaged Switch</li> 	<li>Managed Switch</li> </ol> UNMANAGED SWITCH Normally Unmanaged Switches use Application-Specific-Integrated Circuits (ASIC's) to build and maintain filter tables It Provides <ol> 	<li>Hardware-based bridging</li> 	<li>Wire speed</li> 	<li>Low latency</li> 	<li>Low cost</li> </ol> Manufacturer of  Unmanaged Switches *Cisco Small Business 100 Series Unmanaged Switches *Netgear *Dax *Enter *Tech-com *Nortel <a href="http://www.futurealert.com/wp-content/uploads/2011/07/Unmanaged-Switch.jpg"><img alt="" class="aligncenter size-full wp-image-369" height="182" src="http://www.futurealert.com/wp-content/uploads/2011/07/Unmanaged-Switch.jpg" width="519" /></a>MANAGED SWITCHES Managed Switches use Cisco IOS Internetwork Operating System to build and maintain MAC address tables Layer 2 filtering based on Destination MAC addresses and Source Address table One collision domain per port One broadcast domain across all switches Asymmetric ports:  10 Mbps and 100 Mbps Full-duplex ports <div>Half duplex - Only one station can send or receive at any one time </div> <div></div> <div>Full duplex - allows transmission and reception at the same time</div> <div> Switching Modes <ul> 	<li>Store and Forward</li> 	<li>Cut through</li> </ul> Store and Forward</div> <div> <ul> 	<li>Entire frame is received before forwarding, The Frame is Stored in Switch.</li> </ul> <ul> 	<li>High Error detection</li> 	<li>Low latency</li> </ul> </div> <div>Cut Through</div> <div style="padding-left: 30px"></div> <div style="padding-left: 30px">Here Its two types (1)Fast Forward (2)Fragment Free</div> <div></div> <div>Fast Forward</div> <div></div> <div style="padding-left: 30px">Forwards frame as soon as after receiving destination address</div> <div style="padding-left: 30px"></div> <div>Fragment Free</div> <div></div> <div>Filters out collision packets If packet data > 64bytes</div> <div></div> <div>Ethernet frame maximum size = 1518bytes</div> <div></div> <div>Ethernet frame minimum size = 64 bytes</div> <div></div> <div><a href="http://www.futurealert.com/wp-content/uploads/2011/07/Switch-2.jpg"><img alt="" class="aligncenter size-full wp-image-365" height="501" src="http://www.futurealert.com/wp-content/uploads/2011/07/Switch-2.jpg" width="674" /></a><a href="http://www.futurealert.com/wp-content/uploads/2011/07/Switch-1.jpg"><img alt="" class="aligncenter size-full wp-image-364" height="604" src="http://www.futurealert.com/wp-content/uploads/2011/07/Switch-1.jpg" width="708" /></a></div> <div>Manufacturer of  Managed Switches</div> <div></div> <div>* Cisco</div> <div>*Nortel</div> <div>*Juniper</div> <div></div> <div></div> <div>Difference Between Switch and Hub</div> <div style="text-align: center"></div> <div style="text-align: center">[youtube]http://www.youtube.com/watch?v=nj6b92ELxmA[/youtube]</div> <div style="text-align: left"> </div> <div style="text-align: center"></div> <div style="text-align: center"></div>

Cisco Switch L2

Switch is a Network Device it works in Layer 2(L2) - Data Link Layer. Normally two Types of Network Switches Unmanaged Switch Managed Sw...

Welcome To CCNA Study

Hi Friends am Prabhakar EN "Welcome all",  Am CCNA online Certified and Just Publishing  some Tips, Commends, Syntax, Lab Exp in CCNA. So cool to say i just giving Lab techniques in <h2>*<a href="http://www.futurealert.com/?p=362">Switching</a></h2> <ul> 	<li><a href="http://www.futurealert.com/?p=384" target="_blank" title="Vlan Configuration">VLan</a></li> 	<li><a href="http://www.futurealert.com/home/intervlan-configuration.html" title="How to: InterVlan routing Configuration">Inter Vlan</a></li> 	<li>VTP</li> 	<li>Port Security</li> </ul> <h2>*Routing</h2> <ul> 	<li>Static Routing</li> 	<li>Dynamic Routing</li> </ul> RIP EIGRP OSPF <ul> 	<li>Security <ul> 	<li>ACL</li> 	<li>NAT</li> </ul> </li> 	<li>WAN</li> 	<li>WLAN</li> 	<li>Frame Relay</li> </ul>

Welcome To CCNA Study

Hi Friends am Prabhakar EN " Welcome all ", Am CCNA online Certified and Just Publishing some Tips, Commends, Syntax, Lab Exp in...