nanog mailing list archives
Re: [arin-announce] IPv4 Address Space (fwd)
From: "Dave Howe" <DaveHowe () gmx co uk>
Date: Wed, 29 Oct 2003 14:37:39 -0000
Simon Lockhart wrote:
Anything that relies on knowing which host it is talking to by looking at the source address of packets breaks.
Indeed. Novell networking for example - or MS Exchange New Mail notification. of course, you shouldn't be doing either on the internet, but a common "small branch office" solution involves ADSL, NAT and a single VPN client....
Plenty of UDP based apps work over NAT.
depends a lot on the nat - if the UDP app isn't port-specific, then often a "smart" nat can create a virtual map for it (and IPSec NAT traversal often relies on a single internal initiator creating such a map on the nat device, and the destination not minding too much) If the "outside" sender expects the recipient to be on a fixed port though, often the best you can hope for is that *one* internal host can receive data.
Current thread:
- Re: [arin-announce] IPv4 Address Space (fwd), (continued)
- Re: [arin-announce] IPv4 Address Space (fwd) Stefan Mink (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Avleen Vig (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Dave Howe (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Simon Lockhart (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Avleen Vig (Oct 29)
- Re[2]: [arin-announce] IPv4 Address Space (fwd) Richard Welty (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Dave Howe (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Jack Bates (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Greg Maxwell (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Owen DeLong (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Stefan Mink (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Dave Howe (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Owen DeLong (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Owen DeLong (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Crist Clark (Oct 29)
- Re: [arin-announce] IPv4 Address Space (fwd) Paul Timmins (Oct 29)
- RE: [arin-announce] IPv4 Address Space (fwd) Deepak Jain (Oct 27)
- Re: [arin-announce] IPv4 Address Space (fwd) Andy Dills (Oct 28)
- Re: [arin-announce] IPv4 Address Space (fwd) Bruce Pinsky (Oct 28)
- Re: [arin-announce] IPv4 Address Space (fwd) sthaug (Oct 28)