the Message buf should be larger than 65536

[ColdwindY]

trafficstars

the Message buf should be larger than 65536,otherwise if -s 2000 then System.ArgumentException. The max ICMP pkg is 65536. So just set public byte[] Message = new byte[80000]; at line 39,ICMP.cs

[Killeroo]

Thanks for pointing this out. Yeah this seems to be a bug with the way that we are updating the ICMP message field, will submit a fix soon.