After the patch that removed the dummy tap device was added (commit ee6c936fbb), IPv6 networks would no longer start due to a "failure to complete DAD". Since this wait was only necessary because of the existence of the dummy tap device (see detailed git log spelunking in Patch 1 comment), we can just remove the wait. Laine Stump (2): network: don't wait for IPv6 DAD completion when starting a network util: remove unused virNetDevIPWaitDadFinish() src/libvirt_private.syms | 1 - src/network/bridge_driver.c | 32 ---------- src/util/virnetdevip.c | 119 ------------------------------------ src/util/virnetdevip.h | 2 - 4 files changed, 154 deletions(-) -- 2.26.2