root@srv-03:/ # ifconfig tap2 create up
root@srv-03:/ # ifconfig tap2 description myvm1-nic0 group vm-port
root@srv-03:/ # ifconfig tap2
tap2: flags=884b<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        description: myvm1-nic0
        ether 00:bd:d8:a9:03:02
        inet6 fe80::2bd:d8ff:fea9:302%tap2 prefixlen 64 scopeid 0x7
        groups: tap vm-port
        media: Ethernet autoselect
        status: no carrier
root@srv-03:/ #
root@srv-03:/ # uname -a
DragonFly srv-03.olevole.ru 6.1-DEVELOPMENT DragonFly v6.1.0.521.g1351cf-DEVELOPMENT #1: Sat Nov 13 15:16:04 UTC 2021     root@srv-03.olevole.ru:/usr/obj/usr/jails/src/src_6.1.0/src/sys/X86_64_GENERIC  x86_64
root@srv-03:/ #