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Old 01-13-2021, 05:30 PM   #1
esselfe
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Question How to get rid of teq10 tun10@NONE gre0@NONE and cie.


Hi, I'm trying to get rid of teql0 tun10@NONE gre0@NONE gretap0@NONE erspan0@NONE ip6_vti0@NONE sit0@NONE ip6tn10@NONE ip6gre0@NONE that shows up in 'ip link'. I tried looking into /etc/systemd/network and /usr/lib/systemd/network but nothing.

My bet is I have to change my kernel config or write a script for boot that deletes the devices...

Thanks

Last edited by esselfe; 01-13-2021 at 11:03 PM.
 
Old 01-13-2021, 06:41 PM   #2
berndbausch
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You can delete them with
Code:
ip link delete dev teq10
and so on, but if they appear after a reboot, they will again appear after a reboot.

These devices are created by some software that you are running on your system. A quick search for erspan0 tells me that this has something to do with viewing traffic on a switch port, very specialized network technology. I would assume that your computer runs a switch port analysis application, and that the removal of these NICs would be detrimental to it.

What distro are you running, and what network management software (apart from systemd-networkd) is installed?

Last edited by berndbausch; 01-13-2021 at 06:45 PM. Reason: lots of text added
 
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Old 01-13-2021, 06:50 PM   #3
esselfe
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The distro is Lunar-Linux and systemd-networkd handles the networking. There is dhcpcd that I was using before but it's not running anymore.

Last edited by esselfe; 01-13-2021 at 07:00 PM.
 
Old 01-13-2021, 10:53 PM   #4
berndbausch
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If they are not configured in systemd-networkd, they might be artifacts of kernel modules. There is, for example, a sit kernel module. I would not know about the others, but searching kernel modules for similar names might help.
 
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Old 01-13-2021, 11:02 PM   #5
esselfe
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Ok so I disabled couple stuff in the kernel config, rebooted and they all disappeared.

Here's my config diff if it can help anyone: 000.txt
 
  


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