[CentOS] Two WiFi routers

Wed Nov 4 17:53:09 UTC 2015
John R Pierce <pierce at hogranch.com>

On 11/4/2015 6:07 AM, Timothy Murphy wrote:
> Thanks for your response.
> Do you have them on different channels?

If you have an android device with wifi (tablet, phone), install the 
freeware app "WiFi Analyzer", and put it in the display mode where it 
shows channels across the bottom and signal strength up the side, each 
channel in use shows up like a parabola as they overlap by 2 
channels.    find two clear channels for your two wifi access points.

now, you said two ROUTERS...    a wifi router is really a internet 
gateway/firewall/sharing appliance, and implements 'NAT' (Network 
Address Translation) such that the clients behind the router are on 
their own private network.    Normally, you want two wireless access 
points or WAP's, without any routing.   many consumer routers /can/ be 
configured to implement this, you don't use the WAN port at all, you 
disable the DHCP service on the LAN side, and you set the LAN IP to a 
unique IP on your LAN subnet for management, then the 'router' will 
bridge the wireless users onto your existing LAN.

On 11/4/2015 9:10 AM, Bowie Bailey wrote:
> If all of the routers are providing access to the same network, you 
> can set up the same SSID, wifi password, and security type for all the 
> routers and the clients should seamlessly switch between them as they 
> move around.  Adjust the channels so that they aren't interfering with 
> each other.  If you have an android device, there is an app called 
> Wifi Analyzer that can show you a graph of all of the available wifi 
> signals, their signal strength, and what channel they are on. 

they won't seamlessly roam between access points unless those are 
centrally managed access points.    Ideally, for a multi-access point 
integrated wireless network, you want a system like the Ubquiti UniFi 
AP's, where the access points are all centrally controlled (UniFi uses a 
software based controller.   most other similar systems like Cisco 
AiroLAN use a hardware controller) and act as a single network, this 
WILL do roaming.

john r pierce, recycling bits in santa cruz