MikroTik

Schnulch

I DO think he would need some serious power, because he now runs at nearly 100% of his rb433ah, and wants to double or triple his customers, hence his throughput, and that will not work out with 120 MHz more of processing power. And even with his atm not too large buisness, I would not recommend to ...

Schnulch

Hi Bomber67, you could split up tasks between RB's, I would recomment to put the wirless connection on a separate board, only doing wireless backhaul / backbone whatever. if your cpu is at 100 %, wireless will suffer as well as your firewall throughput. Perhaps a RBB 800 would do the trick for you, ...

Schnulch

Hi, just a quick question, Tom. Would it be possible to use a patchcable (1m, 0,5 m) and put it in switchgroup one with one end, switchgroup two with second end? that way you would have at least 7 GBit ports left, with a "Backplane" of only 1 Gbit/s FD, but that could suffice for many thin...

Schnulch

Thanks for your reply, but WSUS is not an option in this network, as we do not have a AD Domain, it's a little WISP network (100 customers atm). So no way to get them to use the wsus server... as for the transparent proxy, I was going to use that anyway, but IPCOP is limited (out of the box, that is...

Schnulch

Hi all, after lots of searching, i finally come to ask YOU for a solution: I have 3 Internet connections, WAN1 to WAN3. I have a Loadbalancer, which distributes the Internet access of my network equally to those 3 lines. Now I want to set up a proxy for Microsoft, Adobe, Apple and other Updates ( IP...

Schnulch

Hi, I would suggest you connect your second Router with WDS to the first one, this should tell you how: http://wiki.mikrotik.com/wiki/Transparently_Bridge_two_Networks You can leave your first one to APBridge, so clients could connect along with the WDS. If you need more bandwith, just add a second ...

Schnulch

Hi, BRIDGE - that is exactly your problem. A bridge can not do NAT, it is a bridge, a unique Interface with more than one port, but only one Interface. Just delete the bridge, give each LAN interface his own IP in it's own address space and give the WAN interface it's IP or set it to DHCP-client. Th...

Schnulch

Hi, You say you use this setup indoors, with SNR of 15-16 dbi. You also say that there are 2 floors between the two RB133. That means, people or perhaps even vehicles could cross your signal from one RB to the other!?! With that distance inside a building you have to get some problems i suppose. Hav...

Schnulch

Hello, Your country-settings may be inaccurate on new RB. Open winbox, wireless, open the wlan-interface, on right-hand side click "Advanced mode", open the "Wireless"-Tab, choose the right country, "apply", now you should have the channels mentioned. If not, they may n...

Schnulch

Another option comes to mind: If your routerboard has more than 3 lan ports, you could just use different subnets with dhcp for guest and company lan, using ether1 and ether2 of the routerboard. Then You use ether 3 of routerboard and connect it to a switch of the company lan. Then user ether4, conn...

Schnulch

Hi, if you really need to browse the lan, you need to set up a DNS server, so the single client on Guest lan can ask for IP's. If there are only a few shares on a few computers /Servers, which this client has to access, just use "net use x:\\IP-adress\sharename" on that client to map the s...

Schnulch

To use RB133 as a bridge between wired an wireless lan the easiest way is to use only one IP-Range for both sides of the bridge (LAN and WLAN). If you have too much PC's connected to your Network for a 192.168.1.0/24 Subnet (Allows you 254 machines) just use 192.168.2.0/23 Network for all clients (W...

Schnulch

The network 192.168.0.0/22 will give him opportunity for 1022 IP's, but I think Windows PC will not be able to see each other while on a different /24 subnet in that range, they could see the router if it's address is inside the same range as the clients (192.168.1.0/24 for LAN and 192.168.2.0/24 fo...

Schnulch

Personally, I would route them on the mikrotik box. I suppose, the mikrotik board is the standard gateway for both lan and wlan !?!. If that's true, all you have to do is to make sure that the wlan-interface is on 192.168.2.0/24 and the lan-interface is on 192.168.1.0/24. Then you should already be ...

Schnulch

Do you have a DHCP - Server in your Netwok, providing IP-Adresses and Gateway-Information?
Did you check network-connectivity of all your equipment from router to Access Point?
You have to find out what part of your net is not working correctly

Sincerly

Schnulch

Schnulch

Hi Alessio, the signal strength at your CPE side is a bit low for that distance with your power settings. The free-space loss is about 110 db for 3 Km, given your 25 db tx-power and 14 dbi antenna on AP side, and a 14 db antenna on cpe side you should be at 110 -25 -14 -14 = -57 db (without cable lo...

Schnulch

Personally I only connect clients that have a signal of at least -70 db at the day of installation with a SNR of at least 20 db. The Equipement gets not really better when it's older, so you need some margin that you have a "real - life - performance" of at least -75 db even at bad weather...

Schnulch

Antenna cables could work like small antenna and "catch" signal from other RF- Equipment on your towers disturbing the signal you want to receive. They could be shielded by a "metal hose", fabric of thin metal wires or similar, connected to case and antenna. Then the unwanted sig...

Schnulch

Hi Alessio, I don't think the minipci-card is your problem, there's no need for a "stronger" one. I have AP's with up to 40 Customers on one mini-pci. With that many clients you don't want (need) a limitation for clients, as they will limitate themselves - sort of. If you can't use Nstreme...

Schnulch

As you use different client-CPE, you are not able to use Nstreme with polling. Sounds to me like a hidden station problem, speak some of your client-CPE's can't "hear" all of the others connected to the same AP, so they send their data simultanously, getting a "stop" from AP, wai...

Schnulch

Perhaps you should rework your wds-setup like this:

http://wiki.mikrotik.com/wiki/Transpare ... o_Networks

Sincerly

Schnulch

Schnulch

Use only clients with NAT enabled, so broadcast domain for network loops will only be behind NAT-Router, causing only this one user trouble. I would not want (l)users to have access to my backbone bridged. You could use routed clients if you prefer, but that's a bit more work to configure properly, ...

Schnulch

Hi, could well be a problem with fresnel zone as posted above. Mounting antenna higher could help in that case. I would check the cables (on both sides, because if it's hardware, problem might be at Side B, if it's reflection or noise, problem would possibly be near side A) It could be the sending p...

Schnulch

The only way to avoid collisions on standard 802.11b is csma, but as you mentioned, the more clients, the more trouble. (Hidden station problem comes to mind...) Nstreme with polling and csma disabled is one way to avoid the problem of loosing bandwith for negotiating who is allowed to send and who ...

Schnulch

Hello, the cases on the second picture seem to be made of some kind of plastic. If that's true, I would recommend using metal cases well grounded. But with all the other stuff around with probably much higher signal power, I don't know if a Bandpass filter or some further shielding of cables (and pe...

Schnulch

Hi,

perhaps you could do your QOS-stuff on a router before the OSPF-link RB333? No need for crazy QOS / mangle or other rules on that link?

Schnulch

Hi, just a minor "issue" here,
if I connect from a Dude-Client 3.0beta8 to a Server with Dude 3.0beta7 I get asked, if I want to UPGRADE from 3.0beta8 to Version 3.0beta7! If I click "yes", I get 3.0beta7 installed.

Schnulch

What exactly do you mean has changed? The setup in the WIKI has Pictures from ROS 2.9.XX, the 411 has ROS 3.XX, so some entries in Winbox have been added or maybe moved, but the way to make a wds bridge is still the same. Didn't it work for you? What exactly seems to be the problem?

Schnulch

Perhaps you should do a "system routerboard upgrade" and reboot.

Schnulch

Depending on your setup, I would suggest you add wlan1, wlan2 and ether 1 to the same ONE bridge (if no routing / NAT is required between the 192's and the clients). If you have to do NAT for Internet connection, please take a look at the doc's and wiki.

Schnulch

http://wiki.mikrotik.com/wiki/Transpare ... o_Networks

Wiki and search function are your friends...

Schnulch

Rb133 (3mini-pci, 3 lan) 1x 2,4 and 1x 5 GHz R52, upgrade 3.4 to 3.8 with winbox, no problems so far. works as expected here

sincerely Schnulch

Schnulch

If you want to get full power, leave the antenna gain on 0db and leave tx-power to default (regulatory domain on wirelss tab of winbox). Leave tx-power at default for ever and always, every other setting i tried did not achieve better results, most of the time they were worse. You can see on the tx-...

Schnulch

Hi Stefano, I did a little search with google earth and found your location near lago di como. I then drawed a line from your punto A to punto b and looked at the elevation levels of the ground in that line. At about 3.5 Km from your punto b there is a height of about 215 m over sea, which is crossi...

Schnulch

I would not use the 23 db antenna to test indoors, just use small 2 to 4 dbi antenna for testing. With 23 dbi you would get a signal of about -5 to -8 db, that's quite high, even reducing the output power level to 1 db would let you have ~ -12 to -15 db. Some people can tell of problems with links b...

Schnulch

You could of course use the RB133 you alreday have instead of the RB411 I suggested.

Schnulch

http://dieklassevon1990.de/Stefano.jpg The scope will do fine. In fact, on that distance trees (especially on rainy weather, all leafs wet, very bad for WLAN) can cut your signal very much, I guess, more than 30 db. But you must realise, with perfect line of sight and the already discussed equipmen...

Schnulch

The signal loss on 12 Km is about 129 db with 5,7 GHz, so if you send the signal with your routerboard at 30 dbi you will have a signal of about -99 db MAX (which you can hardly receive with WLAN equipment of any kind, cause the usual WLAN-cards have a (theoretical, on the paper) receive limit from ...

Schnulch

Mikrotik r52 is Atheros-based mini-pci card which offers 18 db (~63 mw) at 6 MBit and about 14 db (~25 mw) at 54 MBit on my RB133c. But as said before, there is no need for high output power on card, because you suggest using an antenna with 27 or 29 dbi, which leaves you only at about 2 to 4 db car...

Schnulch

Hi sdefabrizio, if you use an Antenna with more than 20 dbi, you will not need a high power card, because every 5 GHz- capable card is able to give you at least 12 db at every speed-rate. Like you said, in Italy there are only 30 dbi EIRP allowed, so you have to add the gain of the antenna and the p...

Schnulch

There's a Jumper on RB133C next ot the mini-pci slot, remove power from RB133C, set the cap to connect both pins, then power up the device, wait till it has finished reboot (after you hear two short beeps, first you here one beep usually direct after plug in Power, then after 20 to 30 seconds , 2 be...

Schnulch

Ok, if the blue LED is lit permanently, then Power seems to be all right. Did you test the RB133 in your Office with at least one of the two Laptops directly with the same cable as on your Client-Location? Or with a switch / Hub between or another cable or with an other Computer? I suppose with Clie...

Schnulch

Difference between office setup and tower: Maybe the cable? straight or crossed? Maybe autoMDI/X does not work as expected on Tower (could be switch or whatever you connected the LAN Interface to?) choose other cable type, test other switch? Power related Problem? POE voltage too low, cable to long?...

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