Date: Sun, 07 Aug 2005 09:23:29 +0200 From: Andy Bontoft <andy@bontoft.net> To: Sam Leffler <sam@errno.com> Cc: freebsd-current@freebsd.org Subject: Re: ath problem Message-ID: <42F5B6F1.9040109@bontoft.net> In-Reply-To: <42F56A66.9080607@errno.com> References: <42F47354.6000109@bontoft.net> <42F56A66.9080607@errno.com>
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[-- Attachment #1 --] Sam Leffler wrote: > Andy Bontoft wrote: > >> Hello, >> I'm unable to get a wireless access point to work properly and for >> the life of me I can't work out why. I've spent the past few evenings >> trawling the mailing list archives without much success. I'm hoping >> someone can point me in the right direction. >> It's an Atheros 5212 (Wistron cm9 miniPCI) in a soekris 4801 box. > > > 5212 Wistron cm9 means nothing; dmesg|grep ath will get you the > mac+phy revs that identify your part. ath_hal: 0.9.14.9 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413) ath0: <Atheros 5212> mem 0xa0010000-0xa001ffff irq 11 at device 14.0 on pci0 ath0: Ethernet address: 00:0b:6b:35:cb:82 ath0: mac 5.9 phy 4.3 radio 3.6 > >> A test client (WinXP SP2) can associate and on occasion obtains an >> address from the DHCP server on the ether side of the AP. Most of the >> time it is unable to obtain an address however, and even when it does >> after a few seconds it changes to the default not connected address >> of the 169.254/16 network. >> Initially I was trying to configure hostap for wpa+802.1x (EAP_TLS), >> the 802.1x worked fine and the XP laptop received its address, again >> after a few seconds the address would revert to the 169.254/16 >> network. To try and identify the issue I switched to a simple wep >> mode (without hostap), but I have the same issue. The athstats tool >> reports a lot of failures. >> I haven't attached pages and pages of debug output as I'm not sure >> what would be required and don't want to flood the list. I have just >> attached a few of the basic things, but if more information is >> required I can obviously supply it. >> Thanks for your time >> andy >> btw - the same laptop works perfectly with an identical config >> (except the SSID is different) on second 'off the shelf' AP. >> >> ap# ifconfig ath0 >> ath0: flags=8847<UP,BROADCAST,DEBUG,RUNNING,SIMPLEX,MULTICAST> mtu 1500 >> inet6 fe80::20b:6bff:fe35:cb82%ath0 prefixlen 64 scopeid 0x4 >> inet 0.0.0.0 netmask 0xff000000 broadcast 0.255.255.255 >> ether 00:0b:6b:35:cb:82 >> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> >> status: associated >> ssid Z channel 9 bssid 00:0b:6b:35:cb:82 >> authmode OPEN privacy ON deftxkey 1 wepkey 1:104-bit txpowmax 53 >> protmode CTS dtimperiod 1 bintval 100 > > > Run open and simplify your config until you figure out what's wrong. > Channels 1, 6, and 11 are usually the best for signal w/ 6 preferred. > Not sure why your ap is using 9. I set it to run on channel nine as at any given time I can see between seven and fifteen wireless networks, with on average half of them running on channel eleven. I run the 'off the shelf' ap I mentioned on channel six and as they're about two foot apart I thought picking an unused channel might be reasonable - incorrectly it seems. > > You don't indicate if the client is using 11g or 11b; based on the > statistics I'm guessing 11g. Yes I was hoping to use the 11g speeds. > > You probably need to setup a 3rd machine and sniff the traffic to see > what's going on. Windows has some serious timing requirements in > their system and if you enable debugging on the ap you may slow things > down enough that the client will time out. > I'll try. > Sam > >> >> ap# sysctl net.link.ether.bridge >> net.link.ether.bridge_cfg: "ath0,sis0" >> net.link.ether.bridge_ipfw: 0 >> net.link.ether.bridge_ipf: 0 >> net.link.ether.bridge.config: "ath0,sis0" >> net.link.ether.bridge.enable: 1 >> net.link.ether.bridge.predict: 0 >> net.link.ether.bridge.dropped: 0 >> net.link.ether.bridge.packets: 0 >> net.link.ether.bridge.ipfw_collisions: 0 >> net.link.ether.bridge.ipfw_drop: 0 >> net.link.ether.bridge.copy: 0 >> net.link.ether.bridge.ipfw: 0 >> net.link.ether.bridge.ipf: 0 >> net.link.ether.bridge.debug: 2 >> net.link.ether.bridge.version: 031224 >> >> ap# ./athstats >> 1666 tx management frames >> 5 tx frames discarded prior to association >> 996 tx failed 'cuz too many retries >> 11502 long on-chip tx retries >> 221 tx frames with no ack marked >> 204 tx frames with short preamble >> 57002 rx failed 'cuz of bad CRC >> 136258 rx failed 'cuz of PHY err >> 122418 OFDM timing >> 13840 CCK timing >> 28961 beacons transmitted >> 165 periodic calibrations >> 4 rfgain value change >> 4489 rate control checks >> 5 rate control dropped xmit rate > > > This is odd; are you using ath_rate_sample? If there is noise causing > the rate control code to drop the tx rate then > No, I had ath_rate_onoe compiled into the kernel, it was running with default sysctl settings. I'm in the process of recompiling without it Thank you for your reply andy >> rssi of last ack: 19 >> avg recv rssi: 33 >> 59 switched default/rx antenna >> Antenna profile: >> [1] tx 472 rx 3037 >> [2] tx 414 rx 29 >> > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to > "freebsd-current-unsubscribe@freebsd.org" -- YW5keUBib250b2Z0Lm5ldAo= [-- Attachment #2 --] 0 *H 01 0 + 0 *H 00MY0 *H 0b1 0 UZA1%0#U Thawte Consulting (Pty) Ltd.1,0*U#Thawte Personal Freemail Issuing CA0 050704133101Z 060704133101Z0Y10UBontoft1 0 U*Andy10U Andy Bontoft1 0 *H andy@bontoft.net0"0 *H 0 5^k+. 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