Simple cli to create netns to limit outbound IP address.
# create namespace
eli netns-cli.lua --setup=<netns name> --outbound-addr=<ipv4> -p <ipv4>:<hport>:<cport>/<proto>
# delete namespace
eli netns-cli.lua --remove=<netns name>
# reapply iptable rules
eli netns-cli.lua --apply-iptables=<netns name>
eli ./tools/amalg.lua -o ./bin/netns-cli.lua -s cli.lua netns ip