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Windows SBS2003 and Wireless AP

Posted on 2009-04-13
Medium Priority
Last Modified: 2013-11-12
HI All, this is a question about the setup of the network that is a follow up to a question I asked about wireless access by PDA type device to Internal web pages. I have SBS2003 setup with 2 NIC and Intel RMM module. The Server does ADS and GP management. And hosting of the Network file shares.
One NIC connect to a Switch and the switch connects to a Dlink Firewall then a ADSL router which connects to the Net. This NIC gets its IP address from the ADSLRouter.This cable on the server only gets connected when updating windows.  
The other NIC is for the Gigabit Unmanged LAN switch, it has a static IP addess 200.200.200.X( the NIC ). All the Machines, Printers on the network are routed with static Ip Addresses. The network works fine with No issues so far( Touch Wood!).
I now want to add a Wireless AP to enable PDA's with Wifi access to web pages on the sbs Server.The server does not have DHCP enabled. I have enabled DNS server for routing the Human readable to Ip address for the web pages(forward look up zones).

My Plan so Far:
1) The AP links to my Lan.
2) I give it a Fixed IP Address
3) I tell the AP  to assign a device on the Wifi a particular IP in a given limited range of IP addresses. I want to use Number below will be for other devices.
4) I enable mac filtering for the Wifi Devices.
The Q?
1) Do I need to enable DHCP on the AP?
2) What about the IP Add already assigned? ( I dont want to touch the wired setup) any way to avoid assigning them again?
3) Security?

Any help and thoughts welcome.

Question by:Niranjan Venkatesh
  • 3

Author Comment

by:Niranjan Venkatesh
ID: 24131481
Hi guys Its Night Time Here and I have been working this Easter weekend redoing the Wiring for the LAN ! 24Port*4 switches. I am the only guy who wires and crimps. So I am tired and am now going to bed so If I don't answers until the morning Please understand.

LVL 97

Assisted Solution

by:Lee W, MVP
Lee W, MVP earned 1000 total points
ID: 24131493
1. Why is the server not handling DHCP?
2.  You cannot use 200.200.200.x - if you do, you will have problems accessing some internet sites that use that address space (unless, of course, you own that address space - but even then, it's better for security to NAT out to a private network).  For private networks, 192.168.x.x, 10.x.x.x, and 172.16-31.x.x. have been reserved and you can use any range starting with those numbers.
3.  ANSWER TO 1: DHCP is a dynamic method of assigning IP addresses.  If you want to use Static addresses, you don't need DHCP at all - but that makes things more difficult to use.  
4.  ANSWER TO 2: I don't follow - which IP are you talking about?  The servers?
5.  ANSWER TO 3: Wireless is insecure.  Period.  If you want to use it, understand that.  You can make it more secure (but always hackable) by using WPA2/WPA/WEP (in that order of preference), enabling MAC address filtering (easily spoofed, but it's something), and not broadcasting the SSID.

Author Comment

by:Niranjan Venkatesh
ID: 24136090
Hi Leew,
Thanks for the Answers. So the first thing I need to do is reassign the Addresses! Easier said than done.
Then the next question is from you experience what are the headaches involved in assigning DHCP and tracing? I find it very easy to trace on the fixed Ip addresses.I have not had to do any maintenance of any sort. The network is mid sized with 12 network printers, and 15 win xp clients.

The answer to the second question's answer you raised is the Ip range for the Ap to use for DHCP.
As for hacking the wireless network,I am in an area where people are not that advanced in technology to try and hack the wifi link. ( in Botswana,Africa). I will be using the recommendations you have given for the wireless link.


Assisted Solution

advansis earned 1000 total points
ID: 24143193
Hi Niranjan
I would enable DHCP on the server, keep in mind that you can always control the scope so you can limit the DHCP pool to the addresses you want. you would then set up the access point as just that- an access point (with whatever additional security measures you prefer) and wifi clients will connect to the network and if they are set up to auto-sense a DHCP server(usually the default) they will see the SBS DHCP which will assign them IPs in the allocated pool. Because all your other addresses are static, you dont have to worry about them... just make sure the DHCP pool does not overlap them static ones!


Accepted Solution

Niranjan Venkatesh earned 0 total points
ID: 24146033
Hi Guys,
Thanks for the advice! I managed to set up the Wifi Link and played around a bit. I set up the Dlink 3200 Ap with a static IP in my current range. Then I set up the PDA ( HP IPAQ HX4700) to a static IP Address in the Lan range. I then tested the ping feature and managed to talk to the server! Then I proceeded to tighten security by limiting MAC adds and Encryption. I then Proceeded to set up a static web page and set it up on the DNS of the Server. I was then able to see the page from the IP address and from the URL. I tested out a sample asp page and It worked!

I am now ready to program my main web page that will handle all the loading functions and scanning etc.So thanks for all the help on all the questions I asked!
As a follow up I am going to promote the server to handle DHCP as soon as I am done with the web page and my access program which should be before June. As I am the only programmer I have to spend a lot of time analyzing, programming and testing.

I am going to split the points between the two replies.


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