[Voyage-linux] Setup Advice

[Andrew Niemantsverdriet]

Hi,

> One possible solution is:
>
> Two radios in your WRAP, one 5GHz for the backhaul (Master or Managed)
> and one 2.4GHz for the local AP.   Don't know if you have the
> radios/antennas for an 11 mi 5GHz link.  Another option is to look into
> the new 900MHz radios for your backhaul.

That is what I want to do. I have really big dishes for the 5ghz link and
a good fade margin setup. I also have a 2.4ghz card to act as the AP with
a little panel antenna. What I am confused about is how to set the
interfaces up.

> Also, while not recommended by some, it is possible to run two 2.4GHz
> radios on a single WRAP with one as backhaul and the other as AP.  Be
> prepared for some throughput loss and absolutely run as channels 1 & 11
> to minimize the radio interference.
>
> Is bridging a hard and fast requirement?  Routing will give much better
> control over your traffic and makes things a lot easier.  I have also
> found that if there is any problem in your bridge configuration you can
> end up with no access via ethernet whereas a static IP on the port is
> fairly bullet proof as far as assuring you a reliable access on reboot.

The backhaul needs to be bridged, I need to see the MAC address that are
comming across it. I suppose I could forgo that requirment if it really is
easier to route it. I can mess with the MAC's at the router at the far
side of the backhaul. The AP does not need to be bridged but that is how I
have always done it. So mostly what I need is idea on how everything needs
to be setup maybe with an example so I can copy it and put in my own IP's.


> Getting even more weird...
>
> If you are running POE on your wire to the roof, you could put 48v on it
> and then do a DC-DC conversion on the roof to feed multiple WRAPs and a
> switch.  The higher voltage would keep the current down and allow a
> higher total power availability to handle the multiple devices on the
> roof.
>
> With multiple WRAPs, you can largely avoid the interference problems
> caused by two radios on the same board plus isolate your customers from
> direct access to the backhaul.
>

What I have now which is really weird is I have a 2 port WRAP running 18v
PoE acting as a router/AP then another 1 port wrap acting as the backhaul.
It gets its power from the DC jack off of the two port wrap. It is not
pretty and needs to be fixed up as it is not realiable.


Thanks,
 _
/-\ ndrew


>
>> No I guess I don't really need a VPN but it is what I use to get a
>> "true"
>> ethernet bridge going (is there a better way?). The reason I need an
>> access point is because the backhaul link is going to be going 11 miles.
>> So it needs to be a dedicated link otherwise performace of the link goes
>> down the drain. One side of the backhaul happens to be a great place to
>> put up and AP. Normally I would just put up another WRAP board as the AP
>> but we only have one ethernet line so that is not really an option.
>>
>> So here is the problem in a nut shell. I have one ethernet line to a
>> roof
>> top with no possbility of bringing more lines up. That roof top has line
>> of sight to a main distribution tower that needs a wireless backhaul
>> link
>> to it. Also that roof top happens to be a great place for an Access
>> point.
>> How would you setup this link?
>>
>> P.S. Could you explain a little more about the madwifi VAP stuff. Maybe
>> shoot me a quick example? I have not had time to use or learn about them
>> yet but they sound really neat.
>>
>> Thanks,
>>
>>  _
>> /-\ndrew
>>
>>
>>>> I need to add an access point into the mix normally I would just
>>>> bridge
>>>> the ethernet and wlan adapter but since the ethernet adapter is
>>>> already a
>>>> part of the OpenVPN bridge that does not work. How would you guys set
>>>> this
>>>> up to have a point to point backhaul and an AP all on a Wrap.2C (1
>>>> ethernet 2 mini pci) any help?
>>>>
>>
>>
>>
>>
>> _______________________________________________
>> Voyage-linux mailing list
>> Voyage-linux at list.voyage.hk
>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>>
>
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> Edwin Whitelaw, P.E.
> New River Valley Unwired, LLC
> 2200 Lonesome Dove Dr
> Christiansburg, VA 24073
> 540-239-0318
>
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