Check and display the IP address of the host that sent the packet.
libc-dev
libpcap-dev
gcc
make
# docker (if eth* available at your PC)
make docker-build
make docker-run
OR
SERVER_PORT=5050 make docker-run
curl localhost:8080/
curl localhost:8080/ip
make docker-stop
# VM
make build
sudo SERVER_PORT=8080 ./whatismyip2 // if eth* available
OR
sudo SERVER_PORT=8080 ./whatismyip2 -inter <network_interface>
curl <vm_ip>:8080/
curl <vm_ip>:8080/ip