Re: No audio/video
From: Brian Sullivan MVP (brians_at_WORMTIREDmeetingbywire.com)
Date: 05/06/04
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Date: Thu, 6 May 2004 08:56:45 -0400
C Tate wrote:
> Many thanks for these helpful comments. I have a few more questions
> which I hope you can answer!
>
> 1) What happens if the modem is also behind a NAT?
With some DSL providers the modem is also a NAT. In that case you would have
to contact the DSL provider ( assuming they provided the modem) and talk to
them about getting a unNAT'ed connection.
> 2) Assuming I modify the router to make myself the dmz machine, does
> this mean my IP address will change in future or will it always stay
> the same?
You would have to clarify what you men by "my IP" in this case. You could
cause the local ( to the computer) IP to be fixed but that would still be a
private unreachable IP. The public IP (the WAN IP of the router) would
change based on the ISP's strategy for handing out IPs -- it may change
deliberately on every connection or it the ISP could attempt to make it
static - only changing occasionally when network reconfiguration has taken
place.
> 3) Does making myself the dmz have any security
> implications?
Yes -- the dmz machine is exposed ot network traffic and should be running a
software firewall.
>
> The whole procedure sounds so long-winded just to get netmeeting
> working!!! How come so many people seem to be using without problems
> these days?
Broadband router usage is very common you are correct. And lots of people do
have problems -- a very large percentage of the posted problems here are
around using NetMeeting with NATs.
> Nearly everybody is on broadband so surely everybody must
> be having this problem?!! Maybe other parties are all using dial-up?!
I doubt your "nearly everybody is on broadband" statement is correct.
Certainly though in N.A. the number of cable/dsl users is quite high.
Being "on broadband" does not imply that the user is behind a NAT. In fact
judging by the numbers of broadband users that are infected by various worms
a very large number are not using routers or software firewall of any kind.
-- Brian Sullivan Meeting by Wire ( http://www.meetingbywire.com) ------------ Is your PC protected? -- http://www.microsoft.com/security/protect/default.asp
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