On Debian 12.04 LTS
I am trying to access the key net.ipv4.conf.all.mc_forwarding
by doing :
sudo sysctl -w net.ipv4.conf.all.mc_forwarding=1
But every time I am doing this, I get the message
error: permission denied on key 'net.ipv4.conf.all.mc_forwarding'
Why do I get this message? How can I change this key?