[TriLUG] vonage behind nat

[Jon Carnes]

You can help your calls during uploads by doing a few bandwidth tests
and then limiting your TCP upload bandwidth to some lower value. The
Linksys WRT54GS lets you do this in it's QoS section.

If you are running linux (and not a Windows box) on the local network,
then you can just run a simple TC script and limit your Linux boxes TCP
upload and not have to worry about modifying the firewall. (I have a
script that works well with my linux firewall customers)

My upload is 384kb (on a bad day) so I limit my TCP upload to 320kb and
never have problem with my voice.

Jon

On Thu, 2005-03-03 at 16:40, Rock Roskam wrote:
> The only time I have had to move my vonage device in front was to apply a firmware update. Other than that it has worked well behind my nat device.  I need to get QOS working better on my linksys router.  The calls drop if I am uploading items like torrents or playing video games.  
> 
> Rock 
> -----Original Message-----
> From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org] On Behalf Of David Rasch
> Sent: Thursday, March 03, 2005 4:35 PM
> To: Triangle Linux Users Group discussion list
> Subject: Re: [TriLUG] vonage behind nat
> 
> On Thu, Mar 03, 2005 at 04:31:28PM -0500, Matt Pusateri <mpusateri at wickedtrails.com> wrote:
> > On Thu, March 3, 2005 3:55 pm, Wing D Lizard said:
> > > Does Vonage work behind a NAT?  I'm wondering if I can plug the 
> > > device into my home network.  Does it require any special settings ( 
> > > some web pages say 'it just works' and other say you need to forward 
> > > some ports)?
> > >
> > > Has anybody tried taking the adaptor to a hotel that has broadband?
> > >
> > > thanks
> > > b\375
> > >
> > 
> > I have heard the if you put vonage in front of everything so that it 
> > has the public address and then everything else is behind the vonage 
> > box, that it can then handle QOS better.  But it is supposed to work 
> > behind nat as well. Obviously if you are nated behind a firewall that 
> > is blocking the required ports then you will be out of luck if you 
> > can't poke the proper holes through.
> 
> Vonage works just fine behind a firewall.  I setup QoS on my firewall to ensure high-quality calls, but it worked pretty well even before I did that.  The only time it suffered was when someone was downloading something at full speed or uploading something (uploading would pretty much kill the call).
> 
> -David