Re: [tcpm] New version of TCP Option for Transparent Middlebox Discovery available

[Andrew Knutsen <andrew.knutsen at bluecoat.com>]

Andrew Knutsen wrote:
> Caitlin Bestler wrote:
> > That may be your usage, but I think a more common usage would be to 
> > probe what if any middle-boxes are involved on a path
> > to help diagnose a probleem or perform a security audit.
>
>    Then perhaps that would be a good first "standard" device type, 
> basically "any device", with an action to both respond and forward.  
> No "target data" would be required in the request, and the response 
> might contain an SNMP public community string or whatever.

   The point was made off-list that "responding and forwarding" doesn't 
work, since the response is on the SYN-AK.  However, the action defined 
for the device-type could be to send a UDP datagram back to the 
originator, and forward the SYN (with option intact) (unless you're the 
destination).

Andrew