Hi,
using FreeBSD 11.0-CURRENT r294313M - this example in the manpage of "if_lagg"
doesn't work anymore (it worked in an older 11.0-CURRENT; don't know the exact
revision yet):
==============================================================================
[...]
The following example uses an active failover interface to set up roaming
between wired and wireless networks using two network devices. Whenever
the wired master interface is unplugged, the wireless failover device
will be used:
# ifconfig em0 up
# ifconfig ath0 ether 00:11:22:33:44:55
# ifconfig create wlan0 wlandev ath0 ssid my_net up
# ifconfig lagg0 create
# ifconfig lagg0 laggproto failover laggport em0 laggport wlan0 \
192.168.1.1 netmask 255.255.255.0
(Note the mac address of the wireless device is forced to match the wired
device as a workaround.)
==============================================================================
As soon as the interface "wlan0" changes its mac address, it cannot connect
to any AP anymore.
The problem is that if you put the wired interface to the failover lagg first
(so it becomes master) and after that the "wlan0" interface, the mac address of
the "wlan0" inteface immediately chnages to the mac address of the wired
interface:
==============================================================================
#ifconfig lagg0 ; ifconfig wlan0
#
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=c319a<TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MCAST,WOL_MAGIC,VLAN_HWTSO,LINKSTATE>
ether 5c:f9:dd:55:c9:fb
inet 172.18.96.4 netmask 0xffffff00 broadcast 172.18.96.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: lagg
laggproto failover lagghash l2,l3,l4
laggport: alc0 flags=5<MASTER,ACTIVE>
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether a4:17:31:12:29:c3
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: IEEE 802.11 Wireless Ethernet DS/1Mbps mode 11g
status: associated
ssid WendlerZone channel 11 (2462 MHz 11g) bssid 80:1f:02:1c:1a:5f
regdomain ETSI country DE indoor ecm authmode WPA2/802.11i privacy ON
deftxkey UNDEF AES-CCM 3:128-bit txpower 30 bmiss 7 scanvalid 60
protmode CTS wme burst roaming MANUAL
groups: wlan
#
#ifconfig lagg0 laggport wlan0
#ifconfig lagg0 ; ifconfig wlan0
#
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 5c:f9:dd:55:c9:fb
inet 172.18.96.4 netmask 0xffffff00 broadcast 172.18.96.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: lagg
laggproto failover lagghash l2,l3,l4
laggport: alc0 flags=5<MASTER,ACTIVE>
laggport: wlan0 flags=0<>
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 5c:f9:dd:55:c9:fb
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
status: no carrier
ssid "" channel 8 (2447 MHz 11g)
regdomain ETSI country DE indoor ecm authmode WPA1+WPA2/802.11i
privacy ON deftxkey UNDEF txpower 30 bmiss 7 scanvalid 60 protmode CTS
wme burst roaming MANUAL
groups: wlan
==============================================================================
After that, the interface "wlan0" cannot connect to any AP anymore.
Any ideas how to solve that?
Regards,
Nils
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