[SOLVED] Vmnet adapters are shown as "device not managed". There are two adapters vmnet1 and vmnet8 which are all not managed.

kats99 · 10-31-2019, 12:33 PM

I asked the same question in relevant IRC channels but couldn't fix it. In gnome it worked but when I change to XFCE then this problem occurs.

berndbausch · 10-31-2019, 06:46 PM

Where do you see this message? Which distro and version, and which program generates the message? How are the NICs configured?

Most importantly though: Why is this a problem? In principle, unmanaged NICs are fine.

kats99 · 10-31-2019, 11:29 PM

uname -a = Linux sandalphon 4.19.0-6-amd64 #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20) x86_64 GNU/Linux
Distro = Debian 10.1

I see this message in the top panel on the network icon. No program generates the message. Actually back when I used Ubuntu, I switched on both these adapters which increased internet speed to almost one mbps just like my host network speed. But because I'm using xfce in debian I can't see the "turn on" buttons. Also in Ubuntu, I switched to xfce for a moment from gnome and saw the same problem.

NetworkManager.conf file:

Code:

[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

I am using VMware workstation 15.5 version.

berndbausch · 11-01-2019, 12:42 AM

I understand that this Debian system is a virtual machine guest, and that you would like to enable vmnet1 and vmnet8 but can't. Correct?

First, it seems that Debian doesn't manage interfaces by default. See https://wiki.debian.org/NetworkManag..._are_Unmanaged.

You can also use the nmcli command to tell NetworkManager to manage devices:

Code:

# nmcli device set vmnet1 managed yes

(do this as superuser). However, this configuration is not persistent, I believe, and will be reset when you restart the machine.

You say that you can't see the turn-on buttons. I also have Xfce (not Debian but Xubuntu), and my network icon is in the upper right corner between a bell icon and the battery indicator. There is an Edit Connection menu point which should allow you map interfaces to connections. See attached screenshot.

I would be interested to see your interface list (ip address command) and your interface configuration in /etc/network/interfaces.

It's strange that you need to enable these two interfaces in order to have optimal internet speed. What interfaces does this machine have, and how are they connected to the host's networking?

kats99 · 11-01-2019, 01:42 AM

Debian is my host os and Slackware is my guest os.
The code,

Code:

# nmcli device set vmnet1 managed yes

worked and I was able to connect to those two adapters. However, there is no internet connection in the guest os. I'm reinstalling VMware and will let you know soon. Meanwhile, here are the interfaces list.

Code:

ifconfig -a

enp5s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 18:03:73:8a:54:d4  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 2118  bytes 168518 (164.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2118  bytes 168518 (164.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vmnet1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.16.46.1  netmask 255.255.255.0  broadcast 172.16.46.255
        inet6 fe80::250:56ff:fec0:1  prefixlen 64  scopeid 0x20<link>
        ether 00:50:56:c0:00:01  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 35  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vmnet8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.16.59.1  netmask 255.255.255.0  broadcast 172.16.59.255
        inet6 fe80::250:56ff:fec0:8  prefixlen 64  scopeid 0x20<link>
        ether 00:50:56:c0:00:08  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 35  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp9s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.43.77  netmask 255.255.255.0  broadcast 192.168.43.255
        inet6 2401:4900:270a:e44b:c860:81:23b2:d90b  prefixlen 64  scopeid 0x0<global>
        inet6 2401:4900:270a:e44b:e81d:c8ff:fe6a:113e  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::e81d:c8ff:fe6a:113e  prefixlen 64  scopeid 0x20<link>
        ether ea:1d:c8:6a:11:3e  txqueuelen 1000  (Ethernet)
        RX packets 86620  bytes 71469949 (68.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 72965  bytes 12159437 (11.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Code:

# cat /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

EDIT1:

Yes! It is working at the optimal speed of 1MBps. Thank you.