Is this over the public internet? If so...then wtf??!! I mean, you have all sorts of scans happening in any responsive internet facing machine. You should also

Is this over the public internet? If so...then wtf??!! I mean, you have all sorts of scans happening in any responsive internet facing machine. You should also be performing similar scans against your own IP addresses. The way they describe it,it appears to be strictly recon, by all means..DHS and NSA should be scanning any IP address they want just like any security researcher or company would (e.g.:shodan,shadowsserver).