back to list| Mailing List os2-wireless_users@2rosenthals.com Archived Message #4081 |
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On Wed, Dec 10, 2003 at 09:10:42AM -0500, Lewis G Rosenthal wrote:Not in infrastructire mode. BSS (Basic Service Set) defines the use of an AP to pass station-to-station traffic. in fact, the Sputnik managed access points which we are now deploying in hotspots (www.sputnik.com) specifically preclude station-to-station transport through the AP for security reasons (e.g., if I get an IP of 192.168.1.10, and you get an IP of 192.168.1.11, we cannot ping one another). BSS makes each node associate with an AP. No association = no transport, even if there is signal.
All traffic must pass through the AP. There is no direct station-to-station traffic.
Of course there is!
I got a couple of wireless cards about two years ago, before I had an AP, and managed to use them in a TCP/IP network without any trouble once I figured out that such a thing as AdHoc mode existed.Because they automatically fell back to Ad-hoc mode with no BSS in place. This behavior is normal. However, if an AP were present, and denied them association, I doubt that they would communicate.
The lack of drivers isn;t the entire issue, I don't think. Essentially, in order to function as an AP, the driver needs to be set into promiscuous mode. If Jens' drivers don't do this, implementing it shouldn't be a big deal, as this is fairly well documented. Once that's out of the way, I would guess that my initial knee-jerk response was overly pessimistic. You're right about the routing issue, though an AP - by definition - doesn't route; it bridges. This, however, shouldn't be difficult to do.Also, it is possible to have an AP with no IP address in it. Early LinkSys units were like this; they configured either through SNMP or USB cable connected to a 'doze box.
In answer to your initial question, I would imagine that it is possible to build an OS/2-based AP. It would be quite an undertaking, though!
Well, it's basically an absence of drivers. I don't think any software exists which would enable an OS/2 system to work in Infrastruture mode, but I would have thought it could simply be used as a router to the Internet, if only there were OS/2 drivers for an ADSL NIC.
On 12/10/2003 08:52 am, John Poltorak thus wrote :
On Tue, Dec 09, 2003 at 01:19:43PM -0600, Sam Lewis wrote:-- Lewis ------------------------------------------------------------ Lewis G Rosenthal, CNA Rosenthal & Rosenthal Accountants / Network Consultants New York / Northern Virginia www.2rosenthals.com
John Poltorak wrote:So, in infrasture mode, if you had an AP on 192.168.0.1 and two computers on 192.168.0.2 and 192.168.0.3, could you contact .3 directly from .2 or would traffic have to be routed via .1?
Is it possible to create an OS/2 Access Point?Ad-Hoc is peer to peer communication between two computers with Wireless NIC's. No access point is needed.
I see that IBM have produced instructions for building a wireless access point on Linux. Wondered how much of it would apply to OS/2...
Also can someone explain the difference between ad-hoc mode and the other one (can't remember the name) ?
Infrastructure mode is used when you have an access point which can be connected to your wired network. An access point is like a wireless Hub.
Presumably ad-hoc mode would allow direct access...
Sam
Team OS/2 / NetWare Users International www.novell.com
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