Darryl \(Dassa\) Lynch writes: > Hallam-Baker, Phillip wrote: >>> There is a major difference between a NAT box plugged into >>> the real Internet and a NAT box plugged into another NAT >>> box. It is a pretty ugly one for the residential user. > I'm afraid it is already happening on a large scale in some parts. > Here in Australia I've seen multiple ISP's who NAT all residential > customers. While I'm not seeing this in the traditional retail (home) ISP market in my area of Europe, provider-operated NAT is common/prevalent in * mobile (GPRS/UMTS) Internet access * public WLANs Some operators even use the same NAT for both, selling "seamless roaming" (that doesn't break TCP connections) between WLAN and 3G service as a feature. -- Simon. _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf