Date: Sun, 3 Jan 2010 07:23:57 -0500 From: Kim Culhan <w8hdkim@gmail.com> To: freebsd-net@freebsd.org Subject: TDMA link cannot pass data Message-ID: <89dbfdc31001030423s3a209a59p6a16b4e86cd58b37@mail.gmail.com>
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Have setup a TDMA link with Atheros hardware but cannot pass any data over the link. The hardware is: ath0: <Atheros 5212> mem 0xfeb90000-0xfeb9ffff irq 17 at device 1.0 on pci5 ath0: [ITHREAD] ath0: AR2413 mac 7.9 RF2413 phy 4.5 The setup on either end: ifconfig wlan create wlandev ath0 wlanmode tdma ssid freebsd-tdma tdmaslotcnt 2 tdmaslotlen 2500 tdmaslot 0 up ifconfig bridge create ifconfig bridge0 addm wlan0 addm em1 192.168.1.17 netmask 255.255.255.0 up ifconfig em1 up ifconfig wlan create wlandev ath0 wlanmode tdma ssid freebsd-tdma tdmaslotcnt 2 tdmaslotlen 2500 tdmaslot 1 up ifconfig bridge create ifconfig bridge0 addm wlan0 addm em1 192.168.1.18 netmask 255.255.255.0 up ifconfig em1 up >From machines connected to the bridged em interfaces on either end of the link it is not possible to ping the opposite end or the bridge0 address on the opposite end. Monitoring the traffic on bridge0 it is possible to see arp packets from the opposite ends, this is the only evidence of the link passing any traffic. The radio interfaces: wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:22:3f:fd:d6:57 media: IEEE 802.11 Wireless Ethernet OFDM/24Mbps mode 11g <flag0,adhoc> status: running ssid freebsd-tdma channel 10 (2457 Mhz 11g) bssid 00:22:3f:fd:d6:57 country US ecm authmode OPEN privacy OFF txpower 22.5 ucastrate 24 mcastrate 24 scanvalid 60 protmode CTS wme burst tdmaslot 0 tdmaslotcnt 2 tdmaslotlen 2500 tdmabintval 5 wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:22:3f:fd:70:ca media: IEEE 802.11 Wireless Ethernet OFDM/24Mbps mode 11g <flag0,adhoc> status: running ssid freebsd-tdma channel 10 (2457 Mhz 11g) bssid 00:22:3f:fd:d6:57 country US ecm authmode OPEN privacy OFF txpower 22 ucastrate 24 mcastrate 24 scanvalid 60 protmode CTS wme burst tdmaslot 1 tdmaslotcnt 2 tdmaslotlen 2500 tdmabintval 5 Any help on this is very greatly appreciated. Some background on the FreeBSD TDMA work can be found here: http://people.freebsd.org/~sam/FreeBSD_TDMA-20090921.pdf regards -kim w8hd -- w8hdkim@gmail.com
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