https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230654
Bug ID: 230654
Summary: [ath] AR9485 will not connect when wlan MAC address is
changed
Product: Base System
Version: 11.2-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: wireless
Assignee: wirel...@freebsd.org
Reporter: yoitsmeremember+f...@gmail.com
I have an AR9485 in a laptop, configured as the backup for an Ethernet
connection as documented in:
https://www.freebsd.org/doc/handbook/network-aggregation.html#networking-lagg-wired-and-wireless
The issue is, when using the recommended configuration, the Atheros card (ath0)
will not establish layer-2 connectivity (i.e. it will not associate with our
access points). After some troubleshooting, it appears this is an issue that
arises due to the MAC address being set on the wlan0 interface. Here is the
configuration that does *NOT* work (rc.conf):
ifconfig_em0="up"
wlans_ath0="wlan0"
ifconfig_wlan0="WPA"
create_args_wlan0="wlanaddr XX:XX:XX:XX:XX:XX" # address of em0 is given
cloned_interfaces="lagg0"
ifconfig_lagg0="up laggproto failover laggport em0 laggport wlan0 DHCP"
This identical configuration works with an Intel Centrino Wireless-N [iwn] card
(except for the necessary change of interface names), so I believe the issue
may be specific to Atheros cards.
A workaround can be achieved by doing all of the following:
- Remove the "create_args_wlan0..." line from rc.conf
- Set the MAC address of the em0 (or appropriate other laggport device) to that
of the Atheros card (replaced by 'Y's in this example), e.g.: echo "ifconfig
em0 link YY:YY:YY:YY:YY:YY" > /etc/start_if.em0
Additional information:
#uname -mirs
FreeBSD 11.2-RELEASE-p1 amd64 BASTION
relevant wireless kernel config:
device wlan # 802.11 support
options IEEE80211_DEBUG # enable debug msgs
options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
device wlan_wep # 802.11 WEP support
device wlan_ccmp # 802.11 CCMP support
device wlan_tkip # 802.11 TKIP support
device wlan_amrr # AMRR transmit rate control algorithm
#device iwn # Intel 4965/1000/5000/6000 wireless NICs.
device ath
device ath_pci
device ath_hal
device ath_rate_sample
options AH_AR5416_INTERRUPT_MITIGATION
options AH_SUPPORT_AR5416
options ATH_ENABLE_11N
relevant output from #pciconf -lcbv:
ath0@pci0:3:0:0: class=0x028000 card=0x02081028 chip=0x0032168c rev=0x01
hdr=0x00
vendor = 'Qualcomm Atheros'
device = 'AR9485 Wireless Network Adapter'
class = network
bar [10] = type Memory, range 64, base 0xf2400000, size 524288, enabled
cap 01[40] = powerspec 2 supports D0 D1 D2 D3 current D0
cap 05[50] = MSI supports 4 messages, 64 bit, vector masks
cap 10[70] = PCI-Express 2 endpoint max data 128(128) RO
link x1(x1) speed 2.5(2.5) ASPM L0s/L1(L0s/L1)
ecap 0001[100] = AER 1 0 fatal 0 non-fatal 2 corrected
ecap 0002[140] = VC 1 max VC0
ecap 0003[160] = Serial 1 0000000000000000
I can provide any other information you need upon request.
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