nanog mailing list archives
Re: IPv6 NAT
From: Owen DeLong <owen () delong com>
Date: Sat, 01 Nov 2003 10:42:37 -0800
I think Paul Timmins covered it rather well. Owen--On Saturday, November 1, 2003 11:56 AM -0600 Shawn Morris <shawn () smorris com> wrote:
Owen DeLong wrote:That probably means they are not using SIP, but, instead are using either H.323 or some other proprietary ugliness. That's unfortunate. SIP has to include the IP address of the RTP destination in it's payload. As such, you can't use SIP cleanly across NAT unless the NAT box knows to proxy the SIP and edit the payload (very messy).Well, VOIP is not my area of expertise, but Vonage is using SIP and we have some of our engineers who are using our internal VOIP/SIP network behind a NAT device.In any case, Vonage aside, lots of things that the average user will eventually consider useful are broken by NAT and NAT is an unnecessary ugliness in most places where it is used. It should _NOT_ be encouraged. Owen --On Saturday, November 1, 2003 11:33 AM -0600 Shawn Morris <shawn () smorris com> wrote:Owen DeLong wrote:If you are telling me that Joe User will never use VOIP, then you are somking from a different internet hooka than the folks at Vonage. I don't know which of you is right, but, I know Vonage has enough customers to say that at least some number of Joe User's are using SIP and RTP which are among the protocols broken by NAT. Next?Vonage's SIP implementation is not broken by NAT and in fact Vonage recommends that you purchase a SOHO router that does NAT.Owen
-- If it wasn't signed, it probably didn't come from me.
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Current thread:
- Re: IPv6 NAT Shawn Morris (Nov 01)
- Re: IPv6 NAT Owen DeLong (Nov 01)
- Re: IPv6 NAT Shawn Morris (Nov 01)
- Re: IPv6 NAT Owen DeLong (Nov 01)
- Re: IPv6 NAT Joe Abley (Nov 01)
- Re: IPv6 NAT Shawn Morris (Nov 01)
- Re: IPv6 NAT Paul Timmins (Nov 01)
- <Possible follow-ups>
- RE: IPv6 NAT Michel Py (Nov 01)
- Re: IPv6 NAT David Lesher (Nov 01)
- RE: IPv6 NAT james (Nov 01)
- Re: IPv6 NAT Suresh Ramasubramanian (Nov 01)
- Re: IPv6 NAT Bill Owens (Nov 01)
- Wiltel Connectivity Issues Brian Boles (Nov 02)
- OT: RE: IPv6 NAT Paul Timmins (Nov 01)
- Re: OT: RE: IPv6 NAT Owen DeLong (Nov 01)
- Re: IPv6 NAT Owen DeLong (Nov 01)