[cisco-voip] Voice over ADSL PPPoATM

[Dan Wing]

> There are some sticky NAT traversal issues with phones and
> CallManager. There are some third parties solutions popping up to
> address this.

There is an existing Cisco solution to NAT traversal, which is
to enable the SCCP application layer gateway in the IOS router
or the PIX.  IOS calls this 'cbac', PIX calls this 'fixup'.  As
you stated, I understand at least one 3rd party is working on 
nearly-identical functionality as well.

In any case, if you don't trust the underlying network (such
as the Internet), your VoIP traffic from a branch office
to corporate office should be protected by an IPsec tunnel.

-d

> We set up GRE tunnels to our CM to work around them.
> 
> Baylor Fooks
> Blue Ridge Internetworks
> www.brnets.com
> direct: 434-951-7992
> mobile: 434-531-0100
> fax: 434-817-0740
> 
> 
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Oliver
> Rebollido
> Sent: Wednesday, August 04, 2004 11:46 AM
> To: Voll, Scott; cisco-voip at puck.nether.net
> Subject: RE: [cisco-voip] Voice over ADSL PPPoATM
> 
> 
> Scott:
> I setup an Cisco 837 Router (built-in ADSL modem) that VPNs back to our
> corporate office.  The remote user has a 7940 IP phone and the QOS I
> used was pretty basic by giving VoIP traffic precedence over data
> traffic.
> 
> Personally, setting up and 837 router is a lot more work than setting up
> a PIX 501 or 506E for this application.
> 
> -Oliver
> 
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Voll, Scott
> Sent: Tuesday, August 03, 2004 2:28 PM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] Voice over ADSL PPPoATM
> 
> Is anyone currently using IPT over an ADSL connection using PPPoA.
> 
> Looks something like this:
> 
> Home - cisco 675 ----- ADSL ------- Telco ATM ---------- Work - router -
> LAN -CM 3.3.4 - VGW -PSTN.
> 
> Anything to note?  QoS? Any comments or Suggestions?
> 
> TIA
> 
> Scott
> 
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
> 
> 
> 
> 
> ATTENTION:
> The information contained in this message may be legally privileged and
> confidential.  It is intended to be read only by the individual or
> entity to whom it is addressed or by their designee. If the reader of
> this message is not the intended recipient, you are on notice that any
> distribution of this message, in any form, is strictly prohibited.
> If you have received this message in error, please immediately notify
> the sender and/or Fenwick & West LLP by telephone at (650) 988-8500 and
> delete or destroy any copy of this message.
> 
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
> 
> 
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip