what is the difference between LAN,WAN and WAN?
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A local area network (LAN) is a computer network covering a small local area, like a home, office, or small group of buildings such as a college. Current LANs are most likely to be based on switched Ethernet or Wi-Fi technology running at from 10 to 10000 Mbps. The defining characteristics of LANs in contrast to WANs are: a) much higher data rates, b) smaller geographic range and c) they do not involve leased telecommunication lines.\n\nMetropolitan Area Networks or MANs are relatively large computer networks usually spanning a campus or a city. They typically use wireless infrastructure or optical fiber connections to link their sites.\n\nA wide area network or WAN is a computer network covering a wide geographical area, involving a vast array of computers. WANs are used to connect local area networks (LANs) together, so that users and computers in one location can communicate with users and computers in other locations.
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FTP: The File Transfer Protocol (FTP) sends data over a reliable connection. This protocol can be used to send, delete, and move files to and from an FTP server and client.\n\nSMTP: The Simple Mail Transfer Protocol is the messaging or e-mail transfer protocol. This protocol allows mail to be transferred on TCP/IP networks, including the Internet.\n\nDNS: The Domain Name System service provides TCP/IP host name to IP address resolution. \n\nHTTP: The World Wide Web uses the Hypertext Transfer Protocol.  This protocol allows you to connect your computer to other computers on the Internet.
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A wireless LAN or WLAN is a wireless local area network that uses radio waves as its carrier: the last link with the users is wireless, to give a network connection to all users in the surrounding area. Areas may range from a single room to an entire campus. The backbone network usually uses cables, with one or more wireless access points connecting the wireless users to the wired network.
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i guess you mean the Network Types:\n\nLAN:(Local Area Network) Communications network that serves users within a confined geographical area. It is made up of servers, workstations, a network operating system and a communications link.\n\nServers are high-speed machines that hold programs and data shared by all network users. The workstations, or clients, are the users' personal computers, which perform stand-alone processing and access the network servers as required. Diskless and floppy-only workstations are sometimes used, which retrieve all software and data from the server. A printer can be attached to a workstation or to a server and be shared by network users.\n\nSmall LANs can allow each workstation to function as a server, allowing all users access to data on all machines. These peer-to-peer networks are often simpler to install and manage, but dedicated servers provide better performance and can handle higher transaction volume. Multiple servers are used in large networks. \n\nThe controlling software in a LAN is the network operating system, such as NetWare, LANtastic and Appletalk, which resides in the server. A component part of the software resides in each workstation and allows the application to read and write data from the server as if it were on the local machine.\n\nThe physical transfer of data is performed by the access method (Ethernet, Token Ring, etc.) which is implemented in the network adapters that plug into the workstations and servers. The actual communications path is the cable (twisted pair, coax, optical fiber) that interconnects each network adapter.\n\nMAN:(Metropolitan Area Network) Communications network that covers a geographic area such as a city or suburb.\n\nWAN:(Wide Area Network) Communications network that covers wide geographic areas, such as states and countries\n\nhope that is what u r looking for,  you can also have a look @: \nhttp://www.comptechdoc.org/independent/networking/cert/\n\nGood luck \n\nhuS
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LAN = local area network \n\nMAN = metropolitan area network \n\nLAN works in a building (office) whereas the MAN works in a large geographical area..Canada are in the process of building a MAN so an entire town can catch wireless internet off-charge!
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Great Answer Shipu.\n\nHowever  the 3 differences are:\n1) MAN is spread across a city or a large geographical location Howvever PAN is used in PDA or PCs where the geographical spread of the network is very limited.\n\n2) MAN uses protocols like DQDB however PAN uses the IEEE 802.15.1 standard.\n\n3) The number of stations attached to MAN is larger than the  number of stations attached to a PAN.\n\nPAN is commonly known as the Bluetooth technology. MAN is Metropolitan Area Network.
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A LAN is a Local Area Network. Local is generally referred to a network contained within a building or an office or a campus. \n\nExamples:\n(1) You might have a LAN for example on a University campus or between office blocks in an office park. \n\n(2) A big corporate perhaps like Anglo American, would generally have a LAN that might span several buildings. \n\nTo set up a LAN -relatively speaking- is cheap. If you want to put an extra couple of network points or an extra couple of devices on the network, it 's not very expensive to do that.\n\nA WAN is a Wide Area Network is a network that connects campuses.\n1. A WAN is generally slow. If we compare that to a LAN, we said that Ethernet could run up to 1000 Mbs, currently, certainly in South Africa, the fastest WAN is 155 Mbs, so you can see in a LAN we can talk up to 1000 Mbs whereas in a WAN, at the moment, currently, today in South Africa, we can only take, literally a 10th of the speed. \n\n2. WAN's are expensive. If we look at the path of telecommunications, we need to connect two offices, one in Pretoria and one in Johannesburg together - it 's an expensive operation even for a slow line. \n\nOne of the differences between a WAN (Wide Area Network) and a LAN (Local Area Network) is the set-up cost. WAN generally are to connect remote offices and when we talk about remote offices we generally refer to the remote offices as those that are outside the campus. For example, if we have an office in Pretoria and we have an office in Cape Town, these are remote offices. There is no chance that we can connect the LAN between Cape Town and Pretoria. In a LAN we connect local offices whereas in a WAN we can connect remote offices. \n\nIf you want  a detailed  discription, let me know\nvijay_v_shekhar@yahoo.com
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A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs). \n\nComputers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. The largest WAN in existence is the Internet.
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A global network, such as the Internet, is usually one big WAN, or in the case of the Internet a collaboration of interconnected WANs. The WANs on the Internet are owned by governments and companies, usually ISPs and general bandwidth service providers. When you want your LAN connected to a global network such as the Internet, you contact an ISP or bandwidth provider and purchase a connection to their WAN. Their WAN is interconnected with all the other WANs that make up the global network.\n\nIn short, when a LAN is connected to the Internet, it connects to a WAN that is interconnected with many other WANs on a global scale. These WANs vary from core WANs, which make up the backbone of the internet, to service WANs that provide means for LANs around the world to connect to the global network.\n\nI hope this is what you were looking for.
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First you need to know th differnce. To understand the difference between a router and a switch you need to understand the ISO model.\n\nISO/OSI Network Model\nThe standard model for networking protocols and distributed applications is the International Standard Organization's Open System Interconnect (ISO/OSI) model. It defines seven network layers. \n\nLayer 1 - Physical \nPhysical layer defines the cable or physical medium itself, e.g., thinnet, thicknet, unshielded twisted pairs (UTP). All media are functionally equivalent. The main difference is in convenience and cost of installation and maintenance. Converters from one media to another operate at this level. \n\nLayer 2 - Data Link \nData Link layer defines the format of data on the network. A network data frame, aka packet, includes checksum, source and destination address, and data. The largest packet that can be sent through a data link layer defines the Maximum Transmission Unit (MTU). The data link layer handles the physical and logical connections to the packet's destination, using a network interface. A host connected to an Ethernet would have an Ethernet interface to handle connections to the outside world, and a loopback interface to send packets to itself. \n\nEthernet addresses a host using a unique, 48-bit address called its Ethernet address or Media Access Control (MAC) address. MAC addresses are usually represented as six colon-separated pairs of hex digits, e.g., 8:0:20:11:ac:85. This number is unique and is associated with a particular Ethernet device. Hosts with multiple network interfaces should use the same MAC address on each. The data link layer's protocol-specific header specifies the MAC address of the packet's source and destination. When a packet is sent to all hosts (broadcast), a special MAC address (ff:ff:ff:ff:ff:ff) is used. \n\nLayer 3 - Network \nNFS uses Internetwork Protocol (IP) as its network layer interface. IP is responsible for routing, directing datagrams from one network to another. The network layer may have to break large datagrams, larger than MTU, into smaller packets and host receiving the packet will have to reassemble the fragmented datagram. The Internetwork Protocol identifies each host with a 32-bit IP address. IP addresses are written as four dot-separated decimal numbers between 0 and 255, e.g., 129.79.16.40. The leading 1-3 bytes of the IP identify the network and the remaining bytes identifies the host on that network. The network portion of the IP is assigned by InterNIC Registration Services, under the contract to the National Science Foundation, and the host portion of the IP is assigned by the local network administrators, locally by noc@indiana.edu. For large sites, usually subnetted like ours, the first two bytes represents the network portion of the IP, and the third and fourth bytes identify the subnet and host respectively. \n\nEven though IP packets are addressed using IP addresses, hardware addresses must be used to actually transport data from one host to another. The Address Resolution Protocol (ARP) is used to map the IP address to it hardware address. \n\nLayer 4 - Transport \nTransport layer subdivides user-buffer into network-buffer sized datagrams and enforces desired transmission control. Two transport protocols, Transmission Control Protocol (TCP) and User Datagram Protocol (UDP), sits at the transport layer. Reliability and speed are the primary difference between these two protocols. TCP establishes connections between two hosts on the network through 'sockets' which are determined by the IP address and port number. TCP keeps track of the packet delivery order and the packets that must be resent. Maintaining this information for each connection makes TCP a stateful protocol. UDP on the other hand provides a low overhead transmission service, but with less error checking. NFS is built on top of UDP because of its speed and statelessness. Statelessness simplifies the crash
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Surely you cant compare\n\nWLAN is a type of network not restricted to one geographical area, an example of it is the Internet as well as 3G (but more focused on mobile/cell phones).\n\nPDA is a type of a handheld computer, so what ways can you say WLAN has an advantage over PDA and vice versa?
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Noticed the following from your question:\n\n1. You need to segregate you LAN from WAN. \n2. You need to build redundancy in the WAN connections\n\nBefore I start answering to those requirements, some important things for you to consider.\n1. what equipment do you have now? \n2. How much bandwidth do you need?\n3. Do you really need redundancy on WAN front (are there issues with ISP connectivity)\n\nIf the switches that you have support Layer 3 (MLS) switching, then you should enable it and ensure that your LAN needs are handled by the switches. Use one port of the 16-port switch to connect the 8-port one, and another to connect the router.\n\nAlso, I do not understand why you need to restart the router for applying configuration changes on specific interfaces. You might consider a SOHO Cisco router, which allows you do most of the configuration changes using either a command-line shell (SSH) or using SNMP utilities\n\n\nbtw, for a more accurate answer to your problem, you might want to post information on \n1. Your current hardware specifics (model no, supported tech etc)\n2. What is the issue that you exactly face.\n\nAlso, it would be nice to be nice when you ask a question. After all you are asking for help! ;)
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A hub works at the hardware level (physical layer) and simply repeats electrical signals - whatever comes in goes out.  A switch works at a logically higher level (data link layer) and does not forward data packets out a port when the port of the target device is known - in other words, it's smarter and helps reduce traffic.\n\n1) I've never seen a router that doesn't allow you to program the WAN side ip address, gateway, and subnet, and the LAN side ip address and subnet.\n\n2) The ip subnet defines the size of your network (the maximum number of connections possible).  On the WAN side of your router, use the subnet the ISP gives you.  On the Lan side, I suggest that you code your ip addresses starting 192.168.x.x and use 255.255.255.0 as a subnet (there are a LOT of other choices, for a lot of oother reasons, but this sounds like the first time you're trying this, so I'm trying to keep it simple).  The gateway defines the address of a router that knows where to forward things you don't.  On the WAN side of your router, use the gateway the ISP gives you.  On the LAN side of the router, the gateway IS the router's LAN ip address.  The DNS are two addresses where a "smart computer" lives that can translate logical names (like www.yahoo.com) to ip addresses (like 214.56.78.211).  On the WAN side, use the two addresses your ISP gives you.  On the Lan side, if your router supports DNS forwarding, use the ip address of the router as the primary and leave the secondary blank.  If not, use the two addresses the ISP gave you.\n\n3) You are only in a domain if you are running some flavor of Windows Server as a domain controller, and all client computers have to log onto the domain to get access.  These you see normally at larger companies.  A Workgroup is simply a bunch of computers on the same subnet with the same workgroup name (so that they can see each other).  You can have workgroups in a domain, but you can also use workgroups without a domain.  Most home networks and very small businesses share files using peer-to-peer sharing and workgroups, without using a domain.\n\n4) A hub is a repeater.  It just repeats the signal.  Now, if we're talking fibre-optics, you still have repeaters (they aren't called hubs), but they do simply repeat a signal.  All transmission lines have a limit as to how far they can run.  If you need to run them further, you have to enbed repeaters into the network.
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First of all why do you have a static ip adress in your WAN if that is your Internet connection. you say you have your Routers Ip adress set to 203.129.208.5. Ok you have that setup so you can have access to it.  You have a conflict there or i am not understanding why you say you you a wan of 203.129.208.2 or 203.129.208.5. which one is it. be a bit more specific. I suggest you set your Router's ip adress to 203.129.208.1. And ever of your LAN ip adress set to 203.129.208.x and the gateway of 203.129.208.1. Leave the WAN open because if you have internet access that WAN should be coming in automaticly for you. Since your running a server make sure you didnt setup those static up adress on both the network cards on your pc since it is a server also disable DHCP server if your not using that on both the Server pc and the Router. Just be a bit specific and i will try to help you more.
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You can add a firewall rule that drops all traffic from the wan interface to the lan interface and all traffic from the lan interface to the wan interface, or alternatively just unplug the cable that is hooked up to the internet from your lan switch/router.
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basic?  Um, a group of computers that can talk to each other is a network.  they all have to be connected to do this.  the is usually done in a home, or office.  vpn is a way to get a computer that is somewhere else to join a local network.
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A hub connects computers, but sends all traffic to all ports which results in network collisions.  \n\nA switch is like a hub, but smarter.  It keeps track of which computer asks for which piece of data and has far less collisions, if any.  Switches that are for home users are only slightly more expensive than hubs.\n\nA router is like a switch, but also can assign ip addresses, forward network traffic coming in on a certain port to a certain ip address, block certain ports, etc.  \n\nA network bridge merges, for lack of a better word, two network connections on a computer.  Honestly I haven't ever needed a network bridge so I can't say much about them.