I used openvpn to create a tun interface on linux
openvpn --mktun --dev tun2 ip link set tun2 up ip addr add 10.0.0.2/24 dev tun2
now I want to modify the ip address to 10.0.0.1/16, how to do it?
besides, how to remove
If you want to remove an ip address simply use
del instead of `add.
ip addr del 10.0.0.2/24 dev tun2 to remove an IP. But since you want to remove the interface that doesn't really matter.
To remove an tun* interface simply use ip link del name or in your case
ip link delete tun2.