DOC PREVIEW
UB CSE 101 - Home Networks

This preview shows page 1-2 out of 6 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 6 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 6 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 6 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

10/30/20141Home Network SetupCSE 101Wednesday, October 29, 2014Home Networks• Home Routers provide a combination of:• Ethernet ports to plug your LAN devices in to• Gateway IP and packet address routing • Network address translation (NAT)• DHCP functions• DNS• Firewall functions• Modem Functionality• Some allow you to connect an external USB or E-Sata drive as a means of providing shared storage.Home Networks• Home Routers are connected to the internet through an Internet Service Provider, ISP.• An ISP provides you a way to connect to their own WAN, providing access to the Internet.• Local ISPs include:• Time Warner, Verizon and any 3g or 4G carrier.An ISP can provide you a modem or home router to connect through their preferred transmission medium.Sometimes these devices must be connected to a local switch to form your own LAN10/30/20142Home Routers• Home routers come in many models, and have varying degrees of configurable options. • When purchasing, look for options such as:• 802.11 b/g/n/ac router for the best performance.• At least 4 additional switch ports (additional switches can be added).• Included storage space accessible over the network.• Popular vendors include Linksys (Cisco), Netgear, Trendnet, D-Link• Some Internet Service Providers (ISPs) will provide bundled “all in one” devices that serve as the modem, router, and switch.Home Routers• Most Home Routers will function as a Network Address Translation firewall (NAT).• Network Address Translation allows a single device, such as a home router, to act as an agent between the Internet (or "public network") and a local (or "private") network. • This means that only a single, unique IP address is required to represent an entire group of internal or private computers, such as a home network.• In a home setup, a NAT firewall allows several home devices to share a single IP provided by an ISP• NATs help to hide the internal setup of your network.Home Routers• Most Home Routers will function as a Network Address translation Firewall, or NAT.10/30/20143Security• Any technology based on radio waves is available for others to see.• Intentionally sharing wireless access with others:• Could violate the law• Could be a restriction of your ISP• May not be possible due to signal range• Can open you to many security risks such as theft of information • Could make you accountable for the misdeeds of others.• Piggybacking -- unauthorized access of a wireless network without the owner’s consent:• Degradation of your own bandwidth• Theft of personal information• Accessory to criminal acts.Initial Setup• Position your router in an area central to your welling to maximize coverage. Remember:• Transmitted radio waves are omnidirectional.• Others may be able to detect the wireless waves.• Repositioning devices can improve radio reception.• When connecting the wires:• Unplug or turn off the ISP’s modem (if it is separate).• Connect a network cable into the port on the router that is labeled "Internet" or "WAN."• Connect the other end of the network cable to the ISP’s modem and power up the modem.• Power on your wireless router.• Wait for the router to go through its initial POST.10/30/20144Initial Setup• All of your wired devices should get plugged in to the “LAN” ports.• Your devices should get assigned an IP address through the router’s built in DHCP service.• From one of your hardwired devices, open a web browser and connect to the router’s web interface.• The address to connect to is usually something like “http://192.168.1.1”.• The ipconfig or ifconfig command can be used to verify• The web interface will prompt for administrative login credentials . Consult your router’s documentation for the default username and password .• Troubleshooting:• the reset button will cause you to lose all your settings.WAN Connection type• DHCP – In this mode, the router sends a DHCP request to the modem device. The modem device then responds with all needed networking parameters. The Router and modem will then communicate with each other through TCP/IP. This is common with cable modems.• P2P (point to point) or P2PoE -- This is a specialized type of connection. Specifying this type of connection also usually requires a password. This is commonly needed with DSL modems.10/30/20145WAN Connection type• Static – This involves entering all networking parameter in manually.• Bridge – This essentially bypasses all of the capabilities of the router and forces it to function as a switch.• Mac-Cloning – This means that your router will pretend to have a different hardware address. This is needed for some ISP setups or for things such as net-pass (in the residence halls) that allows access to the network by looking at a MAC address.DHCP• The range of addresses should be kept small, around 2-3 depending on how many users/devices you expect on your private network. Limiting the number of addresses limits the amount of people who can be on the network.DHCP• Mac Locking (filtering): Assigns each device on your network an address based on its MAC address. This ensures no intruders can get an address even if they break into your system’s wireless password.• Your router will only “speak” to addresses you program in.• You can obtain your MAC address by using “ipconfig /all” in Windows or “ifconfig –a” in Linux or MacOS. Look for “Physical Address” in the listing.• Every so often check the devices that are registered to the router. Their address will actually show up on the router’s listing. If you see unknown devices be suspicious.10/30/20146Security• Change the name of your network, the service set identifier (SSID), and disable it from broadcasting. • The SSID is the name of your wireless network.• This controls how your router broadcasts its presence.• This could cause difficulty in joining the network.• Port forwarding may need to be configured to serve as a mapping between the private and public sides of the router. • This is useful for things like gaming consoles.• Block “WAN Requests” to conceal your network from other Internet users.• Disable the universal plug and play (UPnP) if available.Security• ALWAYS enable some type of encryption. • WPA or WPA2 encryption is preferred, but even WEP is better than leaving your network wide open.•


View Full Document

UB CSE 101 - Home Networks

Documents in this Course
Load more
Download Home Networks
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Home Networks and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Home Networks 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?