From: Larry Finger <Larry.Finger@lwfinger.net>
To: Tuc at Beach House <tuctboh@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: IBSS or Hostapd, but not both
Date: Tue, 30 Dec 2014 09:44:37 -0600 [thread overview]
Message-ID: <54A2C865.8020203@lwfinger.net> (raw)
In-Reply-To: <CAM-0sLw-N1J535xWE=XG-Pn3yi7YBUFhbBKJE0pmEUy9tKDtsA@mail.gmail.com>
On 12/29/2014 01:17 PM, Tuc at Beach House wrote:
> Hi,
>
> Raspberry Pi Model B+, Linux blue 3.12.28+ #709 PREEMPT Mon Sep 8 15:28:00
> BST 2014 armv6l GNU/Linux, hostapd v2.3 (defconfig), Ralink using rt2800usb
> driver on either a Wi-Pi or Panda Ultra Wireless N USB Adapter.
>
> What I'm trying to accomplish is using a single interface to be an AP on
> one SSID, and ad-hoc on another SSID. The problem is that I can either do
> one, or the other, but not both...
>
> root@blue:~# iwconfig wlan1
> wlan1 IEEE 802.11bgn ESSID:off/any
> Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
> Retry long limit:7 RTS thr:off Fragment thr:off
> Encryption key:off
> Power Management:on
>
> So if I set up ad-hoc, works fine :
>
> root@blue:~# iw dev wlan1 interface add wlan10 type ibss
> root@blue:~# iwconfig wlan10
> wlan10 IEEE 802.11bgn ESSID:off/any
> Mode:Ad-Hoc Cell: Not-Associated Tx-Power=0 dBm
> Retry long limit:7 RTS thr:off Fragment thr:off
> Encryption key:off
> Power Management:on
>
> root@blue:~# iwconfig wlan10 essid WEDDING
> root@blue:~# ifconfig wlan10 10.4.4.8 netmask 255.255.255.0
> root@blue:~# ping -c2 new
> PING new.wedding.ramolaandscott,com (10.4.4.6) 56(84) bytes of data.
> 64 bytes from new.wedding.ramolaandscott,com (10.4.4.6): icmp_req=1 ttl=64
> time=3.51 ms
> 64 bytes from new.wedding.ramolaandscott,com (10.4.4.6): icmp_req=2 ttl=64
> time=1.02 ms
>
> --- new.wedding.ramolaandscott,com ping statistics ---
> 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
> rtt min/avg/max/mdev = 1.024/2.268/3.512/1.244 ms
>
>
> Now invoke hostapd with the following /etc/hostapd/hostapd.conf :
>
> root@blue:~# cat /etc/hostapd/hostapd.conf
> interface=wlan1
> ssid=FREE
> hw_mode=g
> channel=1
> root@blue:~# /usr/local/bin/hostapd -dd /etc/hostapd/hostapd.conf
> (Please see http://pastebin.com/cjqukwyH)
>
>
> But if I reboot and try backwards :
>
> root@blue:~# hostapd -dd /etc/hostapd/hostapd.conf
> (Please see http://pastebin.com/Tdc5dz81)
>
>
> And its fine, but then :
>
> root@blue:~# iw dev wlan1 interface add wlan10 type ibss
> root@blue:~# iwconfig wlan10
> wlan10 IEEE 802.11bgn ESSID:off/any
> Mode:Ad-Hoc Cell: Not-Associated Tx-Power=20 dBm
> Retry long limit:7 RTS thr:off Fragment thr:off
> Encryption key:off
> Power Management:on
>
> root@blue:~# iwconfig wlan10 essid WEDDING
> root@blue:~# ifconfig wlan10
> wlan10 Link encap:Ethernet HWaddr 00:c1:41:07:07:d1
> BROADCAST MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
>
> root@blue:~# ifconfig wlan10 10.4.4.8 netmask 255.255.255.0
> SIOCSIFFLAGS: Device or resource busy
> root@blue:~# ifconfig wlan10
> wlan10 Link encap:Ethernet HWaddr 00:c1:41:07:07:d1
> inet addr:10.4.4.8 Bcast:10.4.4.255 Mask:255.255.255.0
> BROADCAST MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
>
> root@blue:~# ping -c2 new
> PING new.wedding.ramolaandscott,com (10.4.4.6) 56(84) bytes of data.
>
> --- new.wedding.ramolaandscott,com ping statistics ---
> 2 packets transmitted, 0 received, 100% packet loss, time 1001ms
>
>
>
> Any idea where to look or what to do to get them to work and play together?
I am not an expert, but this sounds like a proper application of virtual interfaces.
Larry
next prev parent reply other threads:[~2014-12-30 15:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-29 19:17 IBSS or Hostapd, but not both Tuc at Beach House
2014-12-30 15:44 ` Larry Finger [this message]
2014-12-30 16:19 ` Arend van Spriel
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