> > I suspect that the mail client doesn't have to be "broken" as the modem
> > will see the escape sequence before any running program(the mail client)
> > gets it. So if you are using a modem out of the box and your connection
> > software doesn't reprogram it before it dials up, there is a good chance
> > that the modem will hang up regardless of what mail client you are
> > using.
On Sun, Sep 16, 2001 at 06:10:09PM +1000, Doug Stalker wrote:
> This used to work many years ago in the days of dialup BBSes. I suspect
> that it won't do anything at all now, as the modem will only accept the
> escape sequence from the local side to avoid a potential DOS attack.
You're right, but there are two modems in a dialup link.
[PC]-DTE---[Modem1]---Line---[Modem2]---DTE-[Router]--(internet)
(The DTE is the local side)
If someone from the internet sends the PC the magic + + + sequence,
(in the right to left direction) Modem1 won't act on it because it
receives it from the line (as stated above), but Modem2 receives it
from the DTE (the local side), so it can potentially act on it.
(assuming Modem2 is a standalone modem that hasn't been configured
properly and without the guard time)
I've been told I'm wrong because the + + + wasn't issued locally
(what ever that means). Am I wrong? Please educate me.
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