Unplugged Ethernet Interface listed as RUNNING

[Russell Haley]

Hi,

I'm poking at stuff on my Hummingboard. I was using my wired interface
ffec0 and then switched over to my wifi stick. After unplugging the
etherent cable, ifconfig still lists the ffec0 interface as UP and
RUNNING still has an ip address even though it was assigned via dhcp.
This was consistent over multiple attempts with and without the wifi
stick invovled. The status indication correctly shows no carrier when
the ethernet is unplugged.

I did a comparison to my BBB running Debian Jessie and when the
ethernet cable is removed, the interface is still listed as UP but not
as RUNNING (although there is no status indication in Linux).

My question: Should FreeBSD be showing the ffec0 interface as RUNNING
even though there is no cable plugged in? Should the DHCP aquired ip
address be removed from the ifconfig listing when the ethernet cable
is unplugged?

Thanks

Russ

root at imx6:~ # ifconfig
ffec0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=80008<VLAN_MTU,LINKSTATE>
        ether d0:63:b4:00:8f:19
        hwaddr d0:63:b4:00:8f:19
        inet 192.168.2.2 netmask 0xffffff00 broadcast 192.168.2.255
        media: Ethernet autoselect (none)
        status: no carrier
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
        inet 127.0.0.1 netmask 0xff000000
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 60:a4:4c:ec:c9:a5
        hwaddr 60:a4:4c:ec:c9:a5
        inet 192.168.2.62 netmask 0xffffff00 broadcast 192.168.2.255
        groups: wlan
        ssid Haleys_DownStairs channel 8 (2447 MHz 11g) bssid ac:9e:17:67:85:90
        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS wme roaming MANUAL
        media: IEEE 802.11 Wireless Ethernet DS/1Mbps mode 11g
        status: associated
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>


root at imx6:~ # cat /etc/rc.conf
hostname="imx6"
ifconfig_DEFAULT="DHCP"
wlans_run0="wlan0"
ifconfig_wlan0="WPA SYNCDHCP"
sshd_enable="YES"
sendmail_enable="NONE"
sendmail_submit_enable="NO"
sendmail_outbound_enable="NO"
sendmail_msp_queue_enable="NO"
growfs_enable="YES"