In what layer of the OSI layer model do routers and hubs work?
613966
Routers are Layer 3 (Network Layer)\nHubs and Switches are Layer 2 (Data Link Layer)\n\nCheers :)
229461
router - Links a local network to a remote network. For example, your company's network probably uses a router to connect to the Internet. Can be used to connect a LAN to a LAN, a WAN to a WAN, or a LAN to the Internet.\n\nAlso - A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network. Routers are located at gateways, the places where two or more networks connect.\n\nRouters use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.\n\nVery little filtering of data is done through routers\n\nswitch - A device to segment networks into different subnets. Segmenting the network into different subnets keeps one network from overloading with traffic.\n\nAlso - In networks, a device that filters and forwards packets between LAN segments. Switches operate at the data link layer (layer 2) and sometimes the network layer (layer 3) of the OSI Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs.\n\nSo by definition, only one of those devices are used to "segment" a collision domain.
870039
routers and modesm are two idfferent things \nu can have one modem and work on it \nor u can have one router and have several modems sonnected to it in simple
816797
hub does not have any such options it got to be your router that u can ping
336619
yes hubs you can use. You can also use  a switch (which I would recommend) You can also use a router (I wouldn't recommend it for your PS2 though, because you will need to configure it for LAN games)\n\nAlso you cannot configure a hub. I works just like a splitter for a phone line.
38158
you do not need a router or hub unless your sharing internet.  If you just want to network the two together you need a crossover cable.  I do recommend the router though.
740809
No, you do not a hub if you have a router. Sounds like the setup you have is correct: Cable modem ->router -> computers 1 and 2.
168999
Ok let's start with a review of the answers so far.\n\nImperial: "they're both used to provide internet connectivity."\n\nSorry that's not right. I can use a hub in a network with no Internet connectivity.\n\nMarker: "A router uses software to send the information directly to the intended port."\n\nI understand what your trying to say but it didn't come across right. A router uses internal software (firmware typically) to direct traffic to the correct network.\n\nexquisite Computers& PU's Q&A: "Router are used in wan as the hub is use in lan Thats the main difer in these"\n\nNOT! Dude please get some networking knowledge before making such wrong, blanket statements. I can have a router in my lan but it cannot perform the same task and a hub in my wan certainly doesn't.\n\nThe other answers are pretty good so I won't repeat what they said.\n\nTo answer your question you need a device that will at least do NAT and a hub cannot do this. Typically your probably looking for a home type DSL/Cable router. For businesses I would suggest something higher end and a asking for support from a local technology provider
871984
No, the pix won't even see the packet because the hosts are in the same subnet.  Only if a packet is destined for a different subnet will the packet be delivered to the gateway for routing.  Being the hosts are in the same subnet, the client will just do a dns lookup for the server (which is in the same subnet) and send it out on the wire.  Even if your subnet mask was 255.255.255.0 or /24, you would still be in the same subnet and no routing would occur.\n\nGiven your scenario, you would need to put the client in the 10.1.0.0/16 subnet and your servers in the 10.2.0.0/16 (for example) this would give you 2 different subnets based on your current mask.
405400
Understand the OSI model.
244860
more details? are we talking layer 3 as in netowrk software??\n\nWe need more information!
1080624
Well since this question is under networking do you mean like Serial, fastethernet, ethernet, BRI, dailer, interfaces?\nthen of course there are different types of serial interfaces and such do you need those because unfortunetly I do not know WAN products that much.\n\nIf you clairfy your question a little bit more I am sure one of will be able to provide the right answer.
38849
I assume you mean the OSI Seven-Layer Model.  The Levels are from top to bottom:\n\n(Taken from Connected: An Internet Encyclopedia)\n\n1. The Physical Layer describes the physical properties of the various communications media, as well as the electrical properties and interpretation of the exchanged signals. Ex: this layer defines the size of Ethernet coaxial cable, the type of BNC connector used, and the termination method.\n\n2. The Data Link Layer describes the logical organization of data bits transmitted on a particular medium. Ex: this layer defines the framing, addressing and checksumming of Ethernet packets.\n\n3. The Network Layer describes how a series of exchanges over various data links can deliver data between any two nodes in a network. Ex: this layer defines the addressing and routing structure of the Internet.\n\n4. The Transport Layer describes the quality and nature of the data delivery. Ex: this layer defines if and how retransmissions will be used to ensure data delivery.\n\n5. The Session Layer describes the organization of data sequences larger than the packets handled by lower layers. Ex: this layer describes how request and reply packets are paired in a remote procedure call.\n\n6. The Presentation Layer describes the syntax of data being transferred. Ex: this layer describes how floating point numbers can be exchanged between hosts with different math formats.\n\n7. The Application Layer describes how real work actually gets done. Ex: this layer would implement file system operations.\n\nMore here, http://www.freesoft.org/CIE/Topics/15.htm
981016
yes, routers work independent of the operating systems of the computer.  As long as you have a wireless card in your mac you will be able to attached to the network.
315586
http://www.cisco.com/en/US/products/hw/routers/ps380/products_tech_note09186a008009429e.shtml#topic2
147219
The spanning tree protocol for routers work like this.\n\n1. Each router is supposed to be a node in the graph and physical connecting lines as the edges.\n\n2. Each router puts a dummy packet to all its neighbours and calculates the cost of the physical network line there.\n\n3. This cost is assigned to the respective edge.\n\n4. Once all the edges are assigned the weight. The spanning tree is calculated using either the Prim's or the Kruskal's algorithm, which is a simple elimination algorithm.\n\nThe spanning tree algorithm highlights the edges which are to be used while multicasting or broadcasting a message packet. The spanning tree ensures that \n\nA) all the nodes (routers) get connected, \n\nB) there is no repetition of data transfer to a router,\nand\nC) the total cost (sum of costs of all the physical lines used) of the network is the minimal.\n\nDue to dynamic nature of networks(their status and traffic), one needs to run the Spanning Tree Algorithm over and over again. This is particularly done after a specified amount of time.\n\nRegards\nParvesh
150381
Don't know if this will do any good, BUT, I experienced the same difficulty (and same messages)and I finally tracked it down to a hardware problem (at least in my case!) I was using an old (used and cheap) hub with a connectivity max of 10 meg. When I upgraded to a 100 meg hub the problem went away. And my LAN is now quick as a deer!