On 06/03/2013 20:34, Robert Moskowitz wrote: > In my testing of HIP, there is reference to use 'nc6' for a simple TCP > character echo server. No such animal in Centos, and after a bit of > digging I find this refers to Netcat6 which seems to be a dead app? Is > it available as an rpm somewhere for Centos? My searching is coming up > empty. Or just about any service that I can start on one system and > connect from another that would perform this simple echo test. nc on CentOS 6 has -4 and -6 options for this. Cheers, John.