Scripts to generate captures exploring TCP reassembly.

On macOS to block TCP reset packets being sent from the host running these scripts add the following rule to /etc.pf.conf:

block drop proto tcp from <source> to <destination> flags R/R

Then enable the firewall by running sudo pfctl -e. To reapply the rules in /etc/pf.conf run sudo pfctl -f /etc/pf.conf.

On Linux:

sudo iptables -A OUTPUT -p tcp --tcp-flags RST RST -s <source> -d <destination> -j DROP