North American Network Operators Group

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Re: [arin-announce] IPv4 Address Space (fwd)

  • From: Avleen Vig
  • Date: Wed Oct 29 06:16:51 2003

On Wed, Oct 29, 2003 at 11:03:11AM +0000, Simon Lockhart wrote:
> No.
> Anything that relies on knowing which host it is talking to by looking at
> the source address of packets breaks.
> Plenty of UDP based apps work over NAT.

Indeed, and IPSec tunnels are frequently done between routers on
networks, rather than individual hosts on networks (at least in most
multi-site enterprises i've seen).