[Info-vax] Update to TCP/IP problem with Alpha VMS 8.4

[glen herrmannsfeldt]

Johnny Billquist <bqt at softjar.se> wrote:

(snip)
> And yes, the previous poster must have been confused. 127.0.0.0 is not a 
> legal host address, either if you have 127.0.0.0/8 or 127.0.0.0/24. A 
> host part of all zeros or all ones are not allowed.

I once had a sysgen of HP-UX for three ethernet ports running on
a system with only one. It wasn't happy not to have an address
for the other ports, so I gave them 127.1.0.1/16 and 127.2.0.1/16,
and lo0 127.0.0.1/16.

That was before the private addresses were allocated, or at least
before I knew about them, about 1990. Ran fine that way for many
years.

It might be that some systems will accept requests on 127.*.*.* anyway.

> But really, 127.0.0.0/24 is also a slight misconfiguration, if anyone is 
> doing that. Not that it will be important enough to make any practical 
> difference...

Well, the allocation was made before CIDR, maybe even before subnets.
It seems to me that even /30 would work just fine.

-- glen