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MikroTik App
 
huntah
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Roaming

Fri Oct 29, 2010 8:48 pm

Hello,

I have a pretty good question which I haven't found a direct answer to on this board.
Wireless Roaming? Is it possible.

My scenario is as the picture is shown.
First basic Setup:
1. SSID on all AP is the same. Encription too (WPA2/AES.. If neccesery we could implement RADIUS on MT or Windows2008)
2. What about frequefencies? What is best -> same or differnt freq. on each AP
3. I have All AP connected over Lan (ETHERNET cable) to our switch and then to RB433 (WAN, HOTSPOT...).
4. Can I use i.e. TP-Link Wireless Routers in Access Point mode (DHCP off, Lan1 port connected to switch) or should I use MT?

Main problem iz VoIP. Will the connection break on chanching the AP?
If I use MT I can set Wireless signal Cutoff range with "Signal Strength Range". What would be good range (-80..100?)..This will enable me to fine tune the clients to connect to the nearest AP (strongest signal)...

This scenario will be used indoors but if the results are good I could spreed it on our Outdoor APs..

Any suggestions, different approaches are welcome.
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TomjNorthIdaho
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Re: Roaming

Sat Oct 30, 2010 12:29 am

Roaming between APs does work well providing the following:

-All APs use the same SSID and encryption settings
-None of the APs are DHCP servers or perform NAT
-All of the APs just bridge the wireless customer on the WLAN to the Ethernet and all Ethernets are backhauled to a common NAT and common DHCP server.
-again - the WLAN on all APs are bridged together and all clients on the APs are on the same common IP network.

re roaming when using a wireless VoIP device - Yes it works well.
There must be overlapping coverage between your APs. If you are in a phone call using a wireless VoIP device and you leave the coverage area of an AP, there must be another AP (same SSID/network) you can roam to. This will permit you to keep the connection as you switch between APs.

Note - there might be a quick brief pause during a VoIP connection as you roam and change to another AP, but it is pretty quick and will not drop the call.

- note - along the lines of what you are asking about - I am considering a project with 3,500 APs in customer homes which could permit a customer with a VoIP sip based phone to drive around town and maintain their VoIP sip phone call. The config would be a secondary SSID on all customer in-home internet accounts - the secondary SSID would not be directly for the customer homes - it would be configured only for my multi-city VoIP sip network. Almost like a cell phone company...
 
huntah
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Re: Roaming

Sat Oct 30, 2010 8:41 pm

Excellent

I have setup just like you said but I am curious about frequencies.. Do you use the same freq for all AP or do you vary them so they don't overlap.
 
netrat
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Re: Roaming

Mon Nov 01, 2010 3:04 pm

Use different frequencies
 
canalla
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Re: Roaming

Wed Mar 16, 2011 1:36 am

Hello all, i´m noob testing this product, can someone tell me how to configure this escenario?

Thanks

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