You have been subscribed to a public bug:
Some time ago I wrote a detailed answer to fix an error for lowering MTU
size for a cisco-compatible VPN
(here:https://unix.stackexchange.com/questions/768757/unable-to-ssh-
into-remote-machine-but-able-to-ping-vpnc/768758#768758)
After upgrading to Ubuntu 24.04 LTS, I'm unable with the same steps to
lower the MTU size.
In particular, if I run the following command from the terminal
sudo ifconfig your_tunnel_name mtu 1370 up
it seems to lower the MTU size.
However, the script under /etc/network/if-up.d is not automatically
triggered.
Does something change with the newer Ubuntu version?
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: 24.04
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if-up.d files does not have effect on ubuntu 24.04 LTS
https://bugs.launchpad.net/bugs/2064093
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seeded packages, which is subscribed to network-manager in Ubuntu.
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