namespace
join:2002-12-22
31337
| Deliberant PtP test link w/ problems
Hi Gang,
Upon recommendation I bought two deliberant units -- DLB1300 with the built in antenna. I'm trying get both the units working together to transfer data.
What I did:
Plug the deliberant unit into the POE connector via cat5, then plug the other end of the POE connector to my switch. (The switch is connected to a freebsd router.)
If I enable the wireless card in my laptop I get a signal from the deliberant unit; I can surf, ping whatever host, everything -- fully connected to the internet.
However, if I take the 2nd deliberant unit and point it at the first unit, then take a cat5 cable and connect the unit to the POE adapter, then plug my laptop into the other side of the POE adapter -- I get no network connectivity. The laptop recognizes the cat5 cable, but that's it. I can't ping anything.
Am I missing something?
Internet Router
Router Switch
Switch Deliberant_1
Deliberant_1 Deliberant_2
Deliberant_2 Laptop
I opened up the unit (where the cat5 cable plugs in) looking for some type of switch -- button -- anything. All I found was what seemed to act as a reset button.
Are the deliberant units layer 2 or layer 3 devices?
These guys don't do any routing, right?
Any help is appreciated.
TIA |
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robbin
Premium,MVM
join:2000-09-21
Leander, TX
| said by namespace  :However, if I take the 2nd deliberant unit and point it at the first unit, then take a cat5 cable and connect the unit to the POE adapter, then plug my laptop into the other side of the POE adapter -- I get no network connectivity. Did you try a crossover cable to connect the laptop? |
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namespace
join:2002-12-22
31337
| said by robbin :Did you try a crossover cable to connect the laptop? Nope, it was a straight through cable. I guess a crossover cable is needed -- I'll wire one up 
Thanks robbin. |
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ponline
join:2004-03-04
presheva
1 edit | Did you do any configuration via the web interface to those dlb1300 units?
Most of the wireless units come preconfigured for AP operation, and the first one is working as AP.
Your lap top could easily connect by searching for an AP and associated with this DLB1300.
If you want the second DLB unit to be conected to the first one, you should enter the websetup of the second unit, and configure it as a "client", with the same SSID that the AP is set. |
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bito
Premium
join:2001-10-08
Atlanta, GA
| Actually, if you want to keep MAC passthrough, you would run them both as AP's and put a WDS link between them. As long as you aren't repeating the signal, you won't have a throughput loss.
Use a cross-over cable for the second unit. Make sure they don't have an IP conflict when they are connected to each other, or they won't be happy.
My guess is that you have an ARP mixup if you didn't change the IP's. Configure the first one, then after you disconnect from it pull up a command prompt and type "arp -d" to clear you ARP table. Then you should be able to hit the second one.
Caleb |
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| I hope You don't have those units laying side by side when You are doing this?, If so, You may have already burned out the recieve side of those radios because of way to much much power. They should be a LEAST 100 yards apart or more when testing.:)
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NetPC
join:2004-04-29
45900
| reply to namespace
Re: anyone using 3054's as wds mesh network
Keep one as factory default (The one connected to the router) login to the one connected to your lapop. Change the ip address to one different then the AP connected to the router just to be sure just change the last number to a 3 or something. Once it reboots go to basic setup once logged back into the antenna (remmember to log back in with the new address) Go to basic setup change to client mode reboot. Once it reboots go to site survey and once it does the survey check the other radio ( AP connected to the router) then go to the bottom and connect. All should be fine and you should have internet. I would turn down the power on both radios and keep them far apart as well. |
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namespace
join:2002-12-22
31337
| reply to namespace
Re: Deliberant PtP test link w/ problems
Thanks gang.
I didn't realize these units had a web interface.
I found the default IP and was able to check out all the options -- pretty sweet. I just thought these units were layer 2 devices, much like a switch -- apparently not.
Also, I didn't know you could fry these guys if they are side-by-side; thanks for mentioning that superdog1.
I'll be re-setting up the test link a little later; I'm confident that everything will go as expected with everything I learned from this thread.
Thanks again! |
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cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA
| reply to namespace
While Tim is correct, generally I just point the radios away from each other and keep them about 10 feet apart. This enough to prevent buring out the recieve section for bried testing purposes.
Soemthing I've learned the hard way is to always test the configuration on a point to point link in the shop before trying to deploy them over any kind of distance.
It's a major PITA to have to walk/drive to the other end just because you forgot one setting. |
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bito
Premium
join:2001-10-08
Atlanta, GA | Yar, I agree. Although sometimes you can put the 1st one in client mode and connect and fix you fckup, thus preventing the return trip. I speak from personal experience  |
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DSLbyAir
Premium,MVM
join:2003-04-10
Ocean Springs, MS
 ·AT&T DSL Service
| Gentlemen, one easy rule of thumb, if it doesn't work on the ground...it will not work in the air. Just something to remember before you climb 100+ft to install the equipment.
--
If you can't fit, force it, and if it breaks, it needed replaced anyway! |
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omahajim
join:2002-09-06
Omaha, NE
| reply to superdog
Re: 1300's next to each other during bench config: said by superdog :I hope You don't have those units laying side by side when You are doing this?, If so, You may have already burned out the recieve side of those radios because of way to much much power. They should be a LEAST 100 yards apart or more when testing.:) superdog: I understand what you are saying; what if I had only one on at a time, then turn down the power to minimum during that initial config, then keep them pointed away from each other during the bench test? Then only turn them back up once they get to the site, using the minimum power (plus fade margin) needed for the trip to the AP?
Also, how would you account for something like the 1100-T that has two radios in it (250mw each?) ? I will be setting up some 1100-T dual radios as repeaters, to extend service to a couple customers located in holes of my main AP coverage:
AP > [WLAN1]working client w/1100T[WLAN2] > 1300A client that is NLOS to AP
The 1100-T's WLAN1 will be on Ch1 with the built-in directional, WLAN2 on Ch11 with an omni, with the 1300A client at the end using the built in directional back to the 1100-T's omni. There will actually be a few customers with 1300-A's leeching off the WLAN2 of the 1100-T which is why there will be on Omni on WLAN2. What would be different in this scenario (with respect to desense or overdriving each other's receive front ends) then two 1300-A's close together?
And while I'm on the subject of reducing power to the lowest required power to do the job (from my ham radio days), would that increase the problems with "hidden transmitter syndrome"? If a number of client radios served from a particular AP can't "hear" each other, will that create lots more retries from collisions?
Thanks
Jim |
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| said by omahajim :Re: 1300's next to each other during bench config: superdog: I understand what you are saying; what if I had only one on at a time, then turn down the power to minimum during that initial config, then keep them pointed away from each other during the bench test? Then only turn them back up once they get to the site, using the minimum power (plus fade margin) needed for the trip to the AP? Also, how would you account for something like the 1100-T that has two radios in it (250mw each?) ? Just turning them away from each other and 10 ft apart should be fine as mentioned earlier. With units that have PCMCIA cards in them, just disconnect the external antenna and You will be fine. Dual radios AP's and repeaters usually have external antennas only , so there won't be a problem as long as they are disconnected.:)
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| I thought I might throw a word of caution. Some units that have integrated antennasCAN NOT be operated without the antenna disconnected or a dummy load in place. If You do this, the radio will burn out almost instantly.(See the instruction manual!:D)
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omahajim
join:2002-09-06
Omaha, NE
| reply to superdog
Thanks superdog for the replies. However, I'm still not sure if I understand your answer.
I did see the other post from you about dummy loads and plugging in antennas. However, the Deliberant dual radio 1100-T comes with two N-Male pigtails, with the option of one of those being an internal directional antenna instead of the pigtail.
So, in normal operation for example, the 1100-T might have a 14dB directional antenna and an omni on it. Those antennas would be in close proximity to one another, at I would assume full power levels. Would that not be any different than a pair of DLB1300-A's in the shop?
Thanks for your insight.
Jim |
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| said by omahajim : Would that not be any different than a pair of DLB1300-A's in the shop? Thanks for your insight. Jim Almost, except that they would be 0n 2 different channels, so the distance wouldn't matter.:)
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