Enable TFTP server on mac

Path is /private/tftpboot (chmod files to 777) Start: sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist Stop: sudo launchctl unload -F /System/Library/LaunchDaemons/tftp.plist

Local test: tftp binary trace verbose get

Redboot serial: make CTRL-C work

echo -e "\0377\0364\0377\0375\0006" >break.bin
sudo arping -f 192.168.1.254
sudo nc -D -vvv 192.168.1.254 9000 <break.bin
telnet 192.168.1.254 9000

Allow inbound connection with VPN enabled

Fix routing to access http server on LEDE router when VPN is on:

echo 200 isp2 >> /etc/iproute2/rt_tables ip rule add from table isp2 ip route add default via dev table isp2