trace

local tArgs = { ... }
if #tArgs == 0 then
    print( "Usage: trace <ip> [<gateip>]" )
    return
end
target=tArgs[1]
if not open() then return end
if not getIP(tArgs[2]) then return end

hop=0
while true do
  send(target,'ping',hop)
  mess,addr=receive(3)
  mess=mess or 'No answer' addr=addr or ''
  if mess=='TTL ower' then  mess='- Ok' end
  write(hop..' '..addr) print(' ',mess)
  if mess=='- Ok' then
    hop=hop+1
    if hop>30 then break end
  else
    break
  end
  sleep(1)
end