Echo Host? / Echo Probe?

Is anyone using the concept of echo hosts today for testing, debugging, QA,

Would anyone find it useful to have a network device which implemented the
echo host idea (RFC 2075) and was completely separate from any network
element or host? (That is, any hi-jacking of / messing with /security
breaches to this device would be completely isolated and have no effect on
any other network element)

Disclaimer: the author works for a leading vendor of RMON probes. The
question does not relate to any immediate product; the answers might.

Jim McQuaid

NetScout Systems, formerly Frontier Software (508) 244-4001 x 1456 / / still works!