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In-Reply-To: <3FD7D7DD.2060301@2rosenthals.com>; from Lewis G Rosenthal on Wed, Dec 10, 2003 at 09:35:09PM -0500
Date:  Thu, 11 Dec 2003 13:11:32 +0000
Sender: os2-wireless_users-owner <os2-wireless_users-owner@2rosenthals.com>
Reply-To: os2-wireless_users@2rosenthals.com
From:  John Poltorak <os2-wireless_users@2rosenthals.com>
To:  os2-wireless_users@2rosenthals.com
Subject: [OS2Wireless] OS/2 Access Point

On Wed, Dec 10, 2003 at 09:35:09PM -0500, Lewis G Rosenthal wrote:

> >Presumably they can if the AP is set as the default route...
> >
> >  
> >
> No. "Default  route" or "default router" or "default gateway" implies 
> the "most direct route from this network to another." 

I've always thought of it as the route of from one IP address to another 
if a direct connection cannot be established. 

> As all Wi-Fi 
> clients in the hotspot are on the same network, the default route has no 
> bearing whatsoever. The Sputnik AP simply does not act as a regular hub 
> in its native mode. Instead, it acts as a partitioned smart hub, meaning 
> it cordons off each attached client from seeing the other. In this 
> manner, it appears to each client as though it (the client) is the only 
> node on the network, even though all of the clients share a common 
> subnet address. So, if we have five clients on the 192.168.1.0 subnet, 
> numbered from 1 through 5, 192.168.1.1 cannot ping .2, .3, .4, or .5. It 
> can, however, ping 4.2.2.2 (one of the root servers on the net), as that 
> goes through its default gateway (say, 192.168.1.100, or whatever the 
> AP's address is - the Sputnik AP actually combines a router in the same 
> box as the AP).


Surely the AP can ping .1 and .2 so why wouldn't tracerte find a way from 
.1 to .2 via the AP using the defaullt route?
 
> >>Also, there's no such thing as an ADSL NIC, AFAIK. 
> >>    
> >>
> >
> >Really?
> >
> >Check this:-
> >
> >http://www.solwise.co.uk/adsl-pci.htm
> >
> It's not a NIC. It's a bridge which connects directly to the PCI bus, 
> instead of connecting via ethernet. (I know, I know...I'm splitting 
> hairs). :-)  

This is where my knowledge gets a little hazy. I thought a NIC defined 
the hardware and the bridging was done using software...

> Seriously, though, an OS/2 box configured as an AP could 
> very well do with just a NIC to go to an external bridge (and would be 
> more flexible in its placement). Neat card, though. Thanks for the link!!

There are quite a few ADSL PCI cards around and many have Linux drivers so 
maybe it would be possible to port them to OS/2, although I have no idea 
about how.

> And you might find the following link interesting, as well:
> 
> http://www.personaltelco.net/index.cgi/LinuxAccessPoint

Thanks. I'll have to try out one of these Linux apps some day.

> >If I managed to build such a box I could stick all my server software on 
> >it such as mail/web/ftp/dns as well as a proxy server and provide a 
> >gateway to an internal network, ie a box which you can just plug into a 
> >telco socket and provide instant access for a number of users. I'm sure a 
> >proxy server would provide better Internet access than having several 
> >users accessing the Internet individually. You could also build in some 
> >access control. I don't see how you could do it otherwise.
> >
> > 
> >
> In this scenario, yes, the all-in-one ADSL bridge card would come in 
> handy. I see where you're headed, now. The proxy also gives you the best 
> security, even beyond NAT.

Yes, I don't like the idea of having to load a whole range of software on 
every client including firewall software when everything could just be 
installed on the gateway. Also a proxy provides quite a few options for 
access control for specific machines as well as being able to block 
'undesriable' web sites for the whole LAN.

> 
> -- 
> Lewis 
> ------------------------------------------------------------ 
> Lewis G Rosenthal, CNA 
>    Rosenthal & Rosenthal 
> Accountants / Network Consultants 
>   New York / Northern Virginia           www.2rosenthals.com
> Team OS/2  / NetWare Users International      www.novell.com
> ------------------------------------------------------------ 
> This OS/2 system (Apollo) uptime is 0 days 09:05 hours and 04 seconds


-- 
John


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