NMap Basic 1.3 challenge exercise

[ei_9664]

i was trying to do nmap basic-- challenge exercise but … can someone explain me what’s happening here
it suppose to load H1-node

[JosephWhite]

The clabnet command is only run once at the start of the lab. Notice I have clabnet running. When I try to run it a second time I get the errors you show in your screenshot…