Re: DG834G and GRC port testing
- From: Brian McIlwrath <bkm@xxxxxxxxxxxxxxxxxxx>
- Date: Sun, 30 Oct 2005 15:26:36 +0000 (UTC)
John Stevens <privatemail548@xxxxxxxxxxx> wrote:
: Would anyone care to suggest a reason why GRC.com SheildsUp, reports a true
: stealth using 1.05.00 on open ports 21, 80, and 443, whilst the same test
: using the latest 3.01.25 firmware gives 'true stealth failed' when probing
: open ports 21, 80 and 443 ?
What you are now seeing is what I would expect! I have only port 22 opened
and the GRC "Shields up" reports this with the latest DG834G firmware (and
the router logs a connection to port 22!).
For "True stealth" the port cannot respond *AT ALL* - in any manner!
The current behaviour of the DG834G is to either connect to the service on
the target port (if running) or to report "connection refused" if the router
port is open but no service is running on the target machine. This is, I
believe, correct!
.
- References:
- DG834G and GRC port testing
- From: John Stevens
- DG834G and GRC port testing
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