Re: WLAN roaming?
On Thu, Jan 01, 2015 at 06:30:50PM -0500, Brad Smith wrote: On 01/01/15 17:14, Christian Weisgerber wrote: My OpenBSD laptop, iwn(4), doesn't roam between my two access points. It's a sorry sight when it struggles to push a signal through the rebar floor instead of switching over to the other access point a meter away. Is this a limitation of OpenBSD's WLAN support or should I blame the access points? (Two stupid consumer APs with the same SSID and on the same network segment.) Searching for WLAN roaming leads to vague references to IEEE 802.11f, but it's unclear to me whether this is required for roaming or just intended to improve it. Roaming is done by the client. This is an OpenBSD issue. It needs the relevant support in the drivers and 802.11 layer. That's correct. Clients are supposed to handle roaming by choosing a different AP and sending a re-association request frame. The standard doesn't specify details so the underlying mechanics are up to the implementation (apparently some vendor-specific extensions exist). I don't believe OpenBSD wireless clients support this transparently. A manual re-assocation is necessary, perhaps with an explicit AP bssid given to ifconfig. 802.11f implements AP-AP communication about re-associations and is supported via hostapd(8).
Re: WLAN roaming?
On 01/01/15 17:14, Christian Weisgerber wrote: My OpenBSD laptop, iwn(4), doesn't roam between my two access points. It's a sorry sight when it struggles to push a signal through the rebar floor instead of switching over to the other access point a meter away. Is this a limitation of OpenBSD's WLAN support or should I blame the access points? (Two stupid consumer APs with the same SSID and on the same network segment.) Searching for WLAN roaming leads to vague references to IEEE 802.11f, but it's unclear to me whether this is required for roaming or just intended to improve it. Roaming is done by the client. This is an OpenBSD issue. It needs the relevant support in the drivers and 802.11 layer. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
WLAN roaming?
My OpenBSD laptop, iwn(4), doesn't roam between my two access points. It's a sorry sight when it struggles to push a signal through the rebar floor instead of switching over to the other access point a meter away. Is this a limitation of OpenBSD's WLAN support or should I blame the access points? (Two stupid consumer APs with the same SSID and on the same network segment.) Searching for WLAN roaming leads to vague references to IEEE 802.11f, but it's unclear to me whether this is required for roaming or just intended to improve it. -- Christian naddy Weisgerber na...@mips.inka.de
