Text 47246, 44 rader
Skriven 2008-07-17 19:50:55 av Robert Fowler (1:123/789.0)
  Kommentar till text 47245 av August Abolins (1:123/789.0)
Ärende: using WAP to WAP
========================
August Abolins -> Alan Zisman wrote:

 AZ>> When you set up your access points and routers, one of the options
 AA> is to
 AZ>> let the device set its own channel or to set it to a dedicated channel
 AZ>> (1-11 ?) The article I linked to is suggesting to multiple access
 AA> points
 AZ>> to different channels, but the same SSID name; the reason would be
 AA> that
 AZ>> when you set up the computer, it connects using the SSID, but searches
 AZ>> for the channel... as you move from place to place within the area
 AZ>> covered by the 2 access points, you won't need to reconfigure the
 AZ>> computer- and it will automatically switch channels as needed.


 AA> I guess I'm missing this part: how do the two wireless AP's manage to
 AA> "find" each other?  Don't they need to be configured using the same
 AA> channel?   Or, do wireless AP's use multiple channels simulatenously?

I think the confusion here is about the function, not the channels. While the
devices can be configured to operate in either ad-hoc or infrastructure mode,
I'm not aware that they can operate in both modes simultaneously.  That's why
Jeff mentioned that they need a wired connection, although not directly to each
other.

Alternatively, you could use a computer to create a bridge between the two
networks, to resolve the single mode issue.  The computer would connect to the
primary router via a wireless NIC, and would have the secondary router
connected directly to it, using the OS to bridge the two networks.  Routing
will need to be enabled, and is the trickier part of the setup.

Both XP and Vista support bridging.  Linux does too, but it must be done
manually.  The obvious drawback to this setup is that the wireless signal
degrades with distance, meaning that while you will extend the range of the
signal, the DTR of the extended signal will be limited to that of the primary
wireless connection.  Probably OK for surfing, but may be inadequate for moving
large volumes of data.  That's another reason the cable connection is utilized.

Regards,

Robert Fowler

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