On Mon, Apr 24, 2000 at 07:28:32PM -0400, Joseph Jacobson wrote:
> See RFC1122, section 3.2.1.3, available at
> http://www.cis.ohio-state.edu/htbin/rfc/rfc1122.html
> http://www.faqs.org/rfcs/rfc1122.html
Right. Assuming we're looking at the same section, it says:
[...]
(g) { 127, <any> }
Internal host loopback address. Addresses of this form
MUST NOT appear outside a host.
[...]
which is the only discussion of 127/8 I see in that document.
The behaviour I'm seeing is that packets to 127.255.255.255 (i.e.,
broadcasts on the 127/8 net) are being sent out the default route,
because on FreeBSD (at least, FreeBSD 3-stable), there's only a host
route for 127.0.0.1, not a network route. Per the RFC, that's
incorrect behaviour, right?
The RFC also says:
For most purposes, a datagram addressed to a broadcast or
multicast destination is processed as if it had been
addressed to one of the host's IP addresses;
Is there some special-case for 127/8 that's covered by the "For most
purposes" line?
Cheers,
N
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