tuntap
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- tun
- L3 - TCI/IP
- tap
- L2 - Ethernet
ip tuntap add tap0 mode tap # user $(id -u) group $(id -g)
ip addr add 172.20.0.1/24 dev tap0
ip link set tap0 upip tuntap add tap0 mode tap # user $(id -u) group $(id -g)
ip addr add 172.20.0.1/24 dev tap0
ip link set tap0 up