Date: Mon, 4 Jan 2010 12:37:58 +0000 From: Rui Paulo <rpaulo@freebsd.org> To: Kim Culhan <w8hdkim@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: TDMA link cannot pass data Message-ID: <4112669B-27E0-4C4C-8107-8960F4F99BD3@freebsd.org> In-Reply-To: <89dbfdc31001030423s3a209a59p6a16b4e86cd58b37@mail.gmail.com> References: <89dbfdc31001030423s3a209a59p6a16b4e86cd58b37@mail.gmail.com>
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On 3 Jan 2010, at 12:23, Kim Culhan wrote: > 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 > This is odd. What happens without the bridge? -- Rui Paulohelp
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