On Wed, 2024-06-19 at 19:05 +0200, Pablo Neira Ayuso wrote: > +setup_hs() > +{ > + local hs=$1 > + local rt=$2 > + local tid=$3 > + local hsname=hs-${hs} > + local rtname=rt-${rt} > + local rtveth=veth-t${tid} > + > + # set the networking for the host > + ip netns add ${hsname} Side note for a possible follow-up (_not_ intended to block this PR!!!): If you leverage setup_ns() from lib.sh, you can reduce a bit the code duplication, and the script will avoid any possible netns name conflict. The same for the following test. Cheers, Paolo