[ 7019.627230] Running test [R:13147394 T:31 - Networking tunnel: permtest - Kernel: 6.1.0] 
[ 7021.999736] tun: Universal TUN/TAP device driver, 1.6 
[ 7022.250661] IPv6: ADDRCONF(NETDEV_CHANGE): tun_a: link becomes ready 
[ 7022.263324] IPv6: ADDRCONF(NETDEV_CHANGE): tap_a: link becomes ready