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Learning about multi subnet networks

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remus:
Hi Rich,

The locals will take anything they can get their hands on, its just their culture :(
They even take the nuts holding together the pipes for the hydro project that was meant to provide 24 hour power, and used the nuts as sinkers for fishing :(
Any solution will need to be theft proof as well as hold up to server tropic sun and wet weather. I think your idea is on the right track, especially your fiber optic suggestions, I never thought of that.

Hi Juanito,
There is a firetide 5200 with 2 9dBI antenna's setup onsite above school of nursing that fails to penetrate the structures across the road from it, except for the windows with line of sight. The buildings are made of heavy duty bessa bricks with steel mesh :( so no wifi gets through those walls. A second firetide 5200 was purchased and brought to Atoifi to relay the signal into the hospital's own network switch. However I could never get the 2nd device to relay the signal. The supplier of the part's said we just had to install it and power it up, however it did not work. I've since been in touch with firetide tech support and have learn't the devices will need special configuration with proprietary firetide software to allow this capability. I have hopes that firetide tech support will get this relay connection sorted out. I wish I could have done it while I was there :)

Once the signal is sucessfully relayed to the hospital firetide 5200 unit I will have to make it connect to the hospital network. I'm guessing the easiest way to do that would be to power down the hospitals firewall/router, and it should then accept DHCP control from the school of nursing router ?, but I've never done this.

School of Nursing Router ---> School of Nursing Network Switch ---> FireTide 5200 a ---> Firetide 5200 b ---> Hospital Network Switch ---> Hospital Computers

As always I welcome the community's input and thoughts :)

Juanito:

--- Quote from: remus on April 30, 2012, 05:27:47 AM ---The supplier of the part's said we just had to install it and power it up, however it did not work.

--- End quote ---

In my limited experience of such things, that would not work.

You'd have to configure both of the units to act as a wireless bridge, which I presume would require entering the mac address of one unit in the other unit and vice versa. Typically the factory default would be for the units to act as an access point.

Given the above, there would be no way to just power up and have things work.

remus:

--- Quote ---In my limited experience of such things, that would not work.
--- End quote ---

I'm guessing that the guy who sold the gear was as surprised as we were.
I'm finding a lot more to the wifi networking world than I thought was available. Take a look at this website : http://www.data-alliance.net/ it has some good info about rugged outdoor solutions.

Juanito:
Forum member "grandma" seems to have some experience in this field (long range wireless), you could maybe try dropping him a pm..

Rich:
Hi remus
If you do decide to go the fiber optic route, this might be worth checking out:
http://www.commfront.com/Fiber-Optic-Converters/Ethernet-to-Fiber-Optic-Media-Converter.htm
It looks pretty foolproof. They are duplex so you only need one at each end. I would suggest the multi-mode version
with the ST connectors. The unit has a 1 mile range. You need to use multi-mode (not single-mode) fiber optic cable
to connect them. There is a FAQ link on the page.
For fiber optic cable, maybe this:
http://fiberopticcables.stores.yahoo.net/index.html

--- Quote ---they are about 150m apart as the crow flys
--- End quote ---
If in doubt, err on the long side. If you come up short, you can't just strip and twist this stuff together to extend it.

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