Bag-O-BytesBag-O-BytesOctober 6October 6thth, 2004, 2004Home NetworkingHome NetworkingPresented by The FPB Help Presented by The FPB Help DeskDeskx6322x6322

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of the Presentation

For use with DSL/Cable For use with DSL/Cable connectionsconnections

Not for Dial inNot for Dial in Connects a variety of Connects a variety of

computers computers Wired and wirelesslyWired and wirelessly

Key component: Key component: A ROUTER!A ROUTER!

Example: Wireless-G Broadband Router Example: Wireless-G Broadband Router All-in-one Internet-sharing Router, 4-port All-in-one Internet-sharing Router, 4-port

Switch, and Wireless-G (802.11g) Access Point Switch, and Wireless-G (802.11g) Access Point Shares a single Internet connection and other Shares a single Internet connection and other

resources with Ethernet wired and Wireless-G resources with Ethernet wired and Wireless-G clients clients

Wireless data rates up to 54Mbps -- 5 times Wireless data rates up to 54Mbps -- 5 times as fast as Wireless-B (802.11b), but also as fast as Wireless-B (802.11b), but also interoperable with Wireless-B devices (at interoperable with Wireless-B devices (at 11Mbps) 11Mbps)

Advanced security: Wi-Fi Protected Access™ Advanced security: Wi-Fi Protected Access™ (WPA), wireless MAC address filtering, (WPA), wireless MAC address filtering, powerful SPI firewall powerful SPI firewall

More: The Linksys Wireless-G More: The Linksys Wireless-G Broadband Router is really Broadband Router is really three devices in one box. three devices in one box. First, there's the Wireless Access First, there's the Wireless Access

Point, which lets you connect Point, which lets you connect Wireless-G or Wireless-B devices Wireless-G or Wireless-B devices to the network. to the network.

There's also a built-in 4-port full-There's also a built-in 4-port full-duplex 10/100 Switch to connect duplex 10/100 Switch to connect your wired-Ethernet devices. your wired-Ethernet devices. Connect four PCs directly, or Connect four PCs directly, or daisy-chain out to more hubs daisy-chain out to more hubs and switches to create as big a and switches to create as big a network as you need. network as you need.

Finally, the Router function ties it Finally, the Router function ties it all together and lets your whole all together and lets your whole network share a high-speed network share a high-speed cable or DSL Internet connection, cable or DSL Internet connection, files, and other resources such files, and other resources such as printers and hard disk storage as printers and hard disk storage space. space.

How are you protected with How are you protected with your new wireless router?your new wireless router? Linksys: To protect your data and Linksys: To protect your data and

privacy, the Wireless-G privacy, the Wireless-G Broadband Router can encode all Broadband Router can encode all wireless transmissions using wireless transmissions using 128-bit WEP encryption.128-bit WEP encryption.

Hackers!!!Hackers!!! One result of this, seen in many One result of this, seen in many

large cities and business large cities and business districts, is called “Warchalking”. districts, is called “Warchalking”. This is one of the terms used for This is one of the terms used for hackers looking to access free hackers looking to access free bandwidth and free Internet bandwidth and free Internet access through your wireless access through your wireless network. network.

Some steps to take:Some steps to take: Change the router’s administrator Change the router’s administrator

password regularly.password regularly.  With every   With every wireless networking device you use, wireless networking device you use, keep in mind that network settings keep in mind that network settings (SSID, WEP keys, etc.) are stored in its (SSID, WEP keys, etc.) are stored in its firmware. If a hacker gets a hold of the firmware. If a hacker gets a hold of the administrator’s password, he, too, can administrator’s password, he, too, can change those settings. So, make it change those settings. So, make it harder for a hacker to get that harder for a hacker to get that information. Change the administrator’s information. Change the administrator’s password regularly.password regularly.

More steps:More steps: SSID.SSID. There are several things There are several things

to keep in mind about the SSID: to keep in mind about the SSID: Disable Broadcast Disable Broadcast Make it unique Make it unique Change it often Change it often

Some additional info on SSID:Some additional info on SSID: Most wireless networking devices Most wireless networking devices

will give you the option of will give you the option of broadcasting the SSID. While this broadcasting the SSID. While this option may be more convenient, option may be more convenient, it allows anyone to log into your it allows anyone to log into your wireless network. This includes wireless network. This includes hackers. So, don’t broadcast the hackers. So, don’t broadcast the SSID.SSID.

Wireless networking products come Wireless networking products come with a default SSID set by the with a default SSID set by the factory. (The Linksys default SSID factory. (The Linksys default SSID is “linksys”.) Hackers know these is “linksys”.) Hackers know these defaults and can check these defaults and can check these against your network. Change your against your network. Change your SSID to something unique and not SSID to something unique and not something related to your something related to your company or the networking company or the networking products you use. products you use.

Change your SSID regularly so Change your SSID regularly so that any hackers who have that any hackers who have gained access to your wireless gained access to your wireless network will have start from the network will have start from the beginning in trying to break in. beginning in trying to break in.

MAC Addresses:MAC Addresses: A unique hex character address on A unique hex character address on

every network/modem/wifi cardevery network/modem/wifi card Ex: 00-20-ac-d6-ed-f2Ex: 00-20-ac-d6-ed-f2 How to find:How to find:

Go to start/run and type: cmd (hit Go to start/run and type: cmd (hit enter)enter)

Type: ipconfig /all (hit enter)Type: ipconfig /all (hit enter)

MAC cont:MAC cont: MAC Addresses.MAC Addresses. Enable MAC Enable MAC

Address filtering. MAC Address Address filtering. MAC Address filtering will allow you to provide filtering will allow you to provide access to only those wireless nodes access to only those wireless nodes with certain MAC Addresses. This with certain MAC Addresses. This makes it harder for a hacker to access makes it harder for a hacker to access your network with a random MAC your network with a random MAC Address. Address.

WEP security:WEP security: WEP Encryption.WEP Encryption. Wired Equivalent Wired Equivalent

Privacy (WEP) is often looked upon as a Privacy (WEP) is often looked upon as a panacea for wireless security concerns. panacea for wireless security concerns. This is overstating WEP’s ability. Again, This is overstating WEP’s ability. Again, this can only provide enough security this can only provide enough security to make a hacker’s job more difficult. to make a hacker’s job more difficult.

If you are transmitting sensitive data If you are transmitting sensitive data over your network, encryption should over your network, encryption should be used. be used.

WEP cont:WEP cont: There are several ways that WEP can There are several ways that WEP can

be maximized:be maximized: Use the highest level of encryption Use the highest level of encryption

possible possible Use a “Shared” Key Use a “Shared” Key Use multiple WEP keys Use multiple WEP keys Change your WEP key regularly Change your WEP key regularly

So, overall, here are some tips!So, overall, here are some tips! Change the default SSID.Change the default SSID. Disable SSID Broadcasts.Disable SSID Broadcasts. Change the default password for the Change the default password for the

Administrator account.Administrator account. Enable MAC Address Filtering.Enable MAC Address Filtering. Change the SSID periodically.Change the SSID periodically. Enable WEP 128-bit Encryption. Please note Enable WEP 128-bit Encryption. Please note

that this will reduce your network that this will reduce your network performance. performance.

Change the WEP encryption keys periodically. Change the WEP encryption keys periodically.

Many other products out there Many other products out there to network your house, but this to network your house, but this is most commonly used.is most commonly used.

OK. So, that’s nice. OK. So, that’s nice.

NOW WHAT DO I DO?NOW WHAT DO I DO?

Inventory:Inventory: Desktop with NIC cardDesktop with NIC card Laptop with wireless cardLaptop with wireless card Cable modem (example, Cable modem (example,

Adelphia)Adelphia) 2 cat 5 cables2 cat 5 cables

1.1. Ensure that Cable modem is Ensure that Cable modem is working fine with desktop. working fine with desktop. (this eliminates the possibility (this eliminates the possibility that your actual connection is that your actual connection is problematic)problematic)

• This should already be set up This should already be set up according to the instructions from according to the instructions from your service provideryour service provider

2. Jot down your desktop Mac address2. Jot down your desktop Mac address

(win2k and above)(win2k and above)

--start/run/type: cmd (hit enter)--start/run/type: cmd (hit enter)

--type: ipconfig /all (hit enter)--type: ipconfig /all (hit enter)

--locate physical address/MAC address --locate physical address/MAC address for the local area connection for the local area connection

3.3. Do the same for the laptop, Do the same for the laptop, but jot down the wireless but jot down the wireless card MAC address…then turn card MAC address…then turn all computers and modems all computers and modems off.off.

Now, the Setup…Now, the Setup…

NON-CD rom instructionsNON-CD rom instructions

4. With everything off, unplug 4. With everything off, unplug the cat 5 cable (that connects the cat 5 cable (that connects you to your cable modem) you to your cable modem) from the back of the desktop.from the back of the desktop.

5. Plug that cable into the 5. Plug that cable into the WAN/Internet port on your WAN/Internet port on your router (or whichever port your router (or whichever port your instruction manual indicates).instruction manual indicates).

6.6. Connect your main PC with to Connect your main PC with to an open port on your router an open port on your router with your additional cat 5 with your additional cat 5 cable.cable.

7. Plug in your power cable to 7. Plug in your power cable to the router and the outlet.the router and the outlet.

8. 8.

(not the laptop yet)

9. 9.

10. 10.

11. We will skip the “configure 11. We will skip the “configure pc” section of the Linksys pc” section of the Linksys instructions, as your pc should instructions, as your pc should be fine if it connected with be fine if it connected with your cable/dsl. However, refer your cable/dsl. However, refer to it if you need to.to it if you need to.

12. 12.

13. 13.

14. 14.

You will find instructions on the CD or the Manufacturer website as to whether you needDomain Name or Host Name fields for your ISP. Otherwise, you may have to ask you ISP…If unsure, try it without at first.

15. For the configuration type 15. For the configuration type setting, you will usually use setting, you will usually use Automatic Configuration.Automatic Configuration.

NOTE: for Adelphia, and possibly NOTE: for Adelphia, and possibly others, you may have to enter others, you may have to enter your computer MAC address in your computer MAC address in the CLONE Mac address the CLONE Mac address section of your setup.section of your setup.

16. When you are finished with 16. When you are finished with the configuration, (be sure to the configuration, (be sure to change that admin change that admin password!!!!) choose save password!!!!) choose save settings.settings.

You can now restart your You can now restart your computer and check to see if computer and check to see if you are able to connect to the you are able to connect to the internet. If you are not, please internet. If you are not, please refer to the troubleshooting refer to the troubleshooting information that came with information that came with your router (may be on the CD)your router (may be on the CD)

17. Let’s go back into our 17. Let’s go back into our browser and into our browser and into our configuration:configuration:

18. 18.

19. Leave the wireless mode on 19. Leave the wireless mode on Mixed.Mixed.

20. Wireless Network Name 20. Wireless Network Name (SSID) you should CHANGE!(SSID) you should CHANGE!

21. Select your wireless 21. Select your wireless channel..channel..

22. 22.

Note, I keep mine on broadcast, yet I encrypt the connection.

23. Setting encryption…23. Setting encryption…

THIS IS HIGHLY RECOMMENDED. THIS IS HIGHLY RECOMMENDED.

Prevents those who do not have Prevents those who do not have the encryption key from the encryption key from connecting to your networkconnecting to your network

24. MAC filtering.24. MAC filtering.

You may also enter MAC You may also enter MAC addresses for computers, so addresses for computers, so that only they connect.that only they connect.

25. Save settings and turn on 25. Save settings and turn on your laptop.your laptop.

If you have your SSID If you have your SSID broadcasted, your laptop broadcasted, your laptop should pick the network up. It should pick the network up. It may ask you if it should may ask you if it should connect…connect…

You must configure the laptop to You must configure the laptop to your new router. your new router.

26. 26.

A.A. accept the connection and go accept the connection and go into properties.into properties.

B.B. go into start/settings/networks go into start/settings/networks and right click on the wireless and right click on the wireless connection and choose connection and choose properties. Then go into Wireless properties. Then go into Wireless Networks.Networks.

27. You can choose ADD to add 27. You can choose ADD to add your network if it does not your network if it does not appear.appear.

You will need your SSID, WEP You will need your SSID, WEP key, etc to fill in the blanks.key, etc to fill in the blanks.

(note, you if you have WEP key, (note, you if you have WEP key, uncheck the “key is provided” uncheck the “key is provided” box to enter the key manually)box to enter the key manually)

28. Configure your connection 28. Configure your connection according to the configuration according to the configuration on your router, and click ok on your router, and click ok until you are out of the until you are out of the settings.settings.

You may now try and connect to You may now try and connect to the internet! the internet!

Please refer to your Please refer to your troubleshooting guide if you troubleshooting guide if you have any problems.have any problems.

NotesNotes

The instructions were based on The instructions were based on a Linksys router and Adelphia a Linksys router and Adelphia Broadband connections. Broadband connections.

Instructions may vary depending Instructions may vary depending on the brand of router and ISP on the brand of router and ISP you may have.you may have.

FAQ’sFAQ’s

Q.Q. How much does a router How much does a router cost?cost?

R.R. Routers are usually sold with Routers are usually sold with a rebate, so lately you can a rebate, so lately you can get them from $30-$60 get them from $30-$60 depending on sale.depending on sale.

FAQ’sFAQ’s

Q.Q. What about the other items.What about the other items.R.R. If you do not already have them, If you do not already have them,

they usually run:they usually run: Cable modem: $60Cable modem: $60 NIC for desktop: $15-$30NIC for desktop: $15-$30 Cat 5 cable: $6Cat 5 cable: $6 Wireless card for laptop: $30-Wireless card for laptop: $30-

$60$60

FAQ’sFAQ’s

Q.Q. Does my machine have a NIC Does my machine have a NIC or wireless card?or wireless card?

A. If it is fairly new, yes, it A. If it is fairly new, yes, it probably does. Check your probably does. Check your packing slip, or the device packing slip, or the device manager.manager.

FAQ’sFAQ’s

Q. Can I do all of this with a Q. Can I do all of this with a WINME or 98 computer?WINME or 98 computer?

A. Well, yes. But it is time to A. Well, yes. But it is time to upgrade. It is 2004 folks upgrade. It is 2004 folks

Audience Q and A.Audience Q and A.

Thank you!Thank you!