DHCP no longer working for em(4)

[Graham Perrin]

DHCP recently stopped working for em0.

HP EliteBook 8570p, recently probed:
<https://bsd-hardware.info/?probe=e90abb54c9>

Any ideas?

For what its worth, the problem _might_ have begun after a package
upgrade routine on Tuesday 20th April:

<https://bsd.to/nWBw/raw>

I updated the sytem (from n246123-21afed4b1d1 to n246330-5eb9c93a20d),
no improvement.

/etc/rc.conf

– includes the following lines:

ifconfig_em0="DHCP"
create_args_wlan0="country GB regdomain etsi"
wlans_iwn0="wlan0"
ifconfig_wlan0="NOAUTO WPA SYNCDHCP"

When I use a static address in lieu of DHCP: no problem.

wlan0 is fine (albeit slow) with DHCP,


% date ; uname -v
Tue 27 Apr 2021 12:10:08 BST
FreeBSD 14.0-CURRENT #93 main-n246330-5eb9c93a20d: Tue Apr 27 05:14:26
BST 2021
***@mowa219-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG
% ls -ahlrt /var/run/dhclient/
total 1
drwxr-xr-x   2 root  wheel     3B 27 Apr 07:00 .
-rw-r--r--   1 root  wheel     5B 27 Apr 07:00 dhclient.wlan0.pid
drwxr-xr-x  22 root  wheel    44B 27 Apr 07:25 ..
% bectl list -c creation
BE                    Active Mountpoint Space Created
r357746-Waterfox      -      -          59.2G 2020-03-10 18:24
n245827-361e9501800-a -      -          10.9G 2021-04-05 18:48
n246123-21afed4b1d1-f -      -          783M  2021-04-26 03:18
n246330-5eb9c93a20d-a NR     /          112G  2021-04-27 06:14
%

----

***@mowa219-gjp4-8570p:~ # date ; time service netif restart em0
Tue Apr 27 12:16:53 BST 2021
dhclient not running? (check /var/run/dhclient/dhclient.em0.pid).
Stopping Network: em0.
em0: flags=8c22<BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=481249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER,NOMAP>
        ether ⋯
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
Starting Network: em0.
em0: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=481249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER,NOMAP>
        ether ⋯
        media: Ethernet autoselect
        status: no carrier
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
0.089u 0.040s 0:01.87 6.4%      139+188k 0+0io 0pf+0w
***@mowa219-gjp4-8570p:~ # date ; ifconfig em0
Tue Apr 27 12:17:00 BST 2021
em0: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=481249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER,NOMAP>
        ether ⋯
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
***@mowa219-gjp4-8570p:~ #

[David Wolfskill]

Post by Graham Perrin
DHCP recently stopped working for em0.
<https://bsd-hardware.info/?probe=e90abb54c9>
Any ideas?
For what its worth, the problem _might_ have begun after a package
<https://bsd.to/nWBw/raw>
I updated the sytem (from n246123-21afed4b1d1 to n246330-5eb9c93a20d),
no improvement.

I am not seeing the issue.

In addition to my older laptop, I have been tracking head. stable/13,
and stable/12 on a newer laptop (a Dell Precision 7520); as its wireless
NIC is not currently supported in FreeBSD, I have been using its wired
NIC:

***@pci0:0:31:6: class=0x020000 rev=0x31 hdr=0x00 vendor=0x8086 device=0x15e3 subvendor=0x1028 subdevice=0x07b0
vendor = 'Intel Corporation'
device = 'Ethernet Connection (5) I219-LM'
class = network
subclass = ethernet

g1-48(14.0-C)[2] ifconfig em0
em0: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=481249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER,NOMAP>
ether 8c:ec:4b:e9:91:81
inet 172.17.1.48 netmask 0xffff0000 broadcast 172.17.255.255
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
g1-48(14.0-C)[3]

As I type, it is running:

g1-48(14.0-C)[3] uname -aUK
FreeBSD g1-48.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #222 main-n246319-cd17774d30c6: Mon Apr 26 03:54:11 PDT 2021 ***@g1-48.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400010 1400010

and in the middle of a source update to main-n246349-daa5350d0e0c.

Post by Graham Perrin
/etc/rc.conf
ifconfig_em0="DHCP"
create_args_wlan0="country GB regdomain etsi"
wlans_iwn0="wlan0"
ifconfig_wlan0="NOAUTO WPA SYNCDHCP"

g1-48(14.0-C)[7] egrep 'ifconfig|wlan' /etc/rc.conf | grep -v '^#'
ifconfig_em0="DHCP"
wlans_iwn0=wlan0
ifconfig_wlan0="WPA DHCP -ht"
netif_nic_seq="wlan0 em0" # Try these NICs in this sequence,
g1-48(14.0-C)[8]

Post by Graham Perrin
....

Peace,
david

[Graham Perrin]

Post by David Wolfskill
I am not seeing the issue.

Thanks for checking.

I realised a cause of the problem after reading
<https://forums.ghostbsd.org/viewtopic.php?p=9437#p9437>, which led me
to report <https://github.com/ghostbsd/networkmgr/issues/56>.

<https://www.freshports.org/net-mgmt/networkmgr/#history> updated to 5.0
on 23rd April.

I wonder why I see no log of the update:

***@mowa219-gjp4-8570p:/var/log # ls -ahlrt messages*
-rw-r--r--  1 root  wheel    61K Mar  5 09:00 messages.4.bz2
-rw-r--r--  1 root  wheel    71K Mar 16 18:00 messages.3.bz2
-rw-r--r--  1 root  wheel    63K Mar 31 15:00 messages.2.bz2
-rw-r--r--  1 root  wheel    53K Apr 15 11:00 messages.1.bz2
-rw-r--r--  1 root  wheel    62K Apr 26 06:00 messages.0.bz2
-rw-r--r--  1 root  wheel   809K May  3 00:48 messages
***@mowa219-gjp4-8570p:/var/log # bzcat messages.1.bz2 | grep networkmgr
***@mowa219-gjp4-8570p:/var/log # bzcat messages.0.bz2 | grep networkmgr
***@mowa219-gjp4-8570p:/var/log # cat messages | grep networkmgr
May  3 00:40:20 mowa219-gjp4-8570p pkg[41146]: networkmgr-5.0 deinstalled
***@mowa219-gjp4-8570p:/var/log #

Related:

bectl, chroot, pkg upgrade, no record of the upgrade in /var/log/messages
<https://lists.freebsd.org/pipermail/freebsd-current/2021-May/079596.html>