Builds a core scenario's network in Java FILIUS, starts it as the action mode does and writes every frame each card saw (the Lauscher) and the addresses at the end. References for the four DHCP scenarios: one DISCOVER/REQUEST per attempt, an ARP check that waits one RTT, DECLINE on a conflict, link-local 169.254.1.x after the fifth failure. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>