> > the evidence I have is from reading vendor advertisements for NAT > > boxes, and from talking to people who run networks that use NAT. > > it's not a random sample, perhaps not a statistically significant > > one, but it's been enough to convince me personally that the > > delusion is widespread. > > You can perhaps understand why I wouldn't consider this a particularly > convincing line of argument. of course. but you can perhaps understand why I don't consider your intiution to the contrary convincing either? > What applications that people want to run--and the IT managers would > want to enable--are actually inhibited by NAT? depends on the people. the people I work with want to run large-scale distributed computing problems. other people want to use SIP to support internet telephony or for some other purpose. others want to use IPsec... yes there are workarounds for many of these, but they have to be invented on a case-by-case basis, and often they're expensive.