Add a sysctl net.link.tap.up_on_open which defaults to zero; when it is non-zero, tap(4) instances will be marked IFF_UP on attach. 1.71 +6 -1 src/sys/net/if_tap.c 1.19 +8 -1 src/share/man/man4/tap.4 PR: 110383 Requested by: Frank Behrens