Richard Zimmerman wrote:> I've got a 3 building network... > > Buildings 1/2 between then have 3 wireless routers all pointed to one > CentOS server. > > The 3rd building across the WAN has 3 wireless routers all into one > server... > > In my case They are for local LAN access so they are setup to pint to a > single IP/gateway address...Thanks for your response. Do you have them on different channels? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin
-----Original Message----- From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Timothy Murphy Sent: Wednesday, November 04, 2015 9:07 AM To: centos at centos.org Subject: Re: [CentOS] Two WiFi routers Timothy Murphy wrote:> Thanks for your response. > Do you have them on different channels?YES, definitely.... If you have the room in the spectrum, ch1, skip2, ch3, skip 4, ch5, etc... I've actually have mine set with two empty channels between them as the 3rd building is a machine / fabrication shop with lots and lots of RFI going on. Regards, Richard --- Richard Zimmerman Systems / Network Administrator River Bend Hose Specialty, Inc. 1111 S Main Street South Bend, IN 46601-3337 (574) 233-1133 (574) 280-7284 Fax
Richard Zimmerman wrote:>> Do you have them on different channels? > > YES, definitely.... If you have the room in the spectrum, ch1, skip2, ch3, > skip 4, ch5, etc... I've actually have mine set with two empty channels > between them as the 3rd building is a machine / fabrication shop with lots > and lots of RFI going on.So does a client laptop have to change NM setup if passing from one router to another? I wonder if one can specify a routers IP address to NM ? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin
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
On 11/04/2015 06:21 AM, Richard Zimmerman wrote:> If you have the room in the spectrum, ch1, skip2, ch3, skip 4, ch5, etcThose channels are too close. They still overlap and cause interference. Effectively, the only useful channels for 2.4Ghz WiFi are 1, 6, and 11.