-- dhcp api
function renew() os.run({}, "/boot/network/dhcp.sys") end
function register(name) os.run({}, "/etc/auth-client/dhcpregister.sys", name) end
function unregister() os.run({}, "/etc/auth-client/dhcpunregister.sys") end
function lookup(name) os.run({}, "/etc/auth-client/dhcplookup.sys" , name) end