Date: Sat, 26 Nov 2022 21:41:28 +0000 From: Graham Perrin <grahamperrin@freebsd.org> To: freebsd-net@freebsd.org Subject: ifconfig_em0: DHCP NOAUTO Message-ID: <991bbedf-95af-6203-cc41-b6c7c0f917e9@freebsd.org>
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From: Graham Perrin <grahamperrin@freebsd.org>
To: freebsd-net@freebsd.org
Message-ID: <991bbedf-95af-6203-cc41-b6c7c0f917e9@freebsd.org>
Subject: ifconfig_em0: DHCP NOAUTO
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<p>With <b>NOAUTO</b> (for the interface to be n<b>ot</b> be
configured at boot)</p>
<p>When, some time after boot, I <b>do</b> want to use the
interface, what steps are required for <br>
<font face=3D"monospace">/var/run/resolvconf/interfaces/em0</font> =
<br>
to be created?=C2=A0</p>
<p>Example context: <br>
</p>
<p><br>
</p>
<p><span style=3D"font-family:monospace"><span
style=3D"color:#000000;background-color:#ffffff;">% date ;
uptime
</span><br>
Sat 26 Nov 2022 15:00:11 GMT
<br>
3:00p.m. =C2=A0up 10 mins, 8 users, load averages: 0.36, 1.05, 0.=
75
<br>
% sysrc ifconfig_em0 ifconfig_wlan0 cloned_interfaces
<br>
ifconfig_em0: DHCP NOAUTO
<br>
ifconfig_wlan0: WPA DHCP
<br>
cloned_interfaces: gif0
<br>
% ls /var/run/resolvconf/interfaces/
<br>
wlan0
<br>
% cat /var/run/resolvconf/interfaces/wlan0
<br>
search lan
<br>
nameserver 192.168.1.1
<br>
nameserver 192.168.1.1
<br>
% ifconfig em0 | grep -e inet -e status
<br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0inet 192.168.1.10 netma=
sk 0xffffff00 broadcast
192.168.1.255
<br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0status: active
<br>
% su -
<br>
Password:
<br>
root@mowa219-gjp4-8570p-freebsd:~ # grep em0
/var/log/dmesg.today | grep -v -e umodem0 -e address
<br>
em0: <Intel(R) 82579LM> port 0x3020-0x303f mem
0xd0400000-0xd041ffff,0xd043a000-0xd043afff at device 25.0 on
pci0
<br>
em0: EEPROM V0.15-4
<br>
em0: Using 1024 TX descriptors and 1024 RX descriptors
<br>
em0: Using an MSI interrupt
<br>
em0: netmap queues/slots: TX 1/1024, RX 1/1024
<br>
ahciem0: <AHCI enclosure management bridge> on ahci0
<br>
ses0 at ahciem0 bus 0 scbus2 target 0 lun 0
<br>
em0: link state changed to UP
<br>
debugnet_any_ifnet_update: Bad dn_init result from em0 (ifp
0xfffff80001b88000), ignoring.
<br>
em0: link state changed to DOWN
<br>
em0: link state changed to UP
<br>
em0: link state changed to DOWN
<br>
em0: link state changed to UP
<br>
root@mowa219-gjp4-8570p-freebsd:~ # </span></p>
<p><br>
</p>
<p><span style=3D"font-family:monospace">gif0 </span>is sometimes
used for a tunnel between <span style=3D"font-family:monospace"><sp=
an
style=3D"color:#000000;background-color:#ffffff;">192.168.1.10<=
/span>
</span>and an IPv6 tunnel broker. <br>
</p>
</body>
<lt-container></lt-container>
</html>
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