nanog mailing list archives
Re: The use of .0/.255 addresses.
From: Jared Mauch <jared () puck nether net>
Date: Sat, 26 Jun 2004 21:33:54 -0400
On Sat, Jun 26, 2004 at 05:01:14PM -0700, Tony Li wrote:
Various people I've asked about this have said they wouldn't use the .0 or .255 addresses themselves, though couldn't present any concrete info about why not; my experience above would seem to suggest a reason not to use them.The .255 address is very likely to be a broadcast address from a netblock of /24 or longer. I would suspect that folks are wary of accepting packets from a broadcast address as that could easily be a smurf. The .0 address was used as a broadcast address long ago and then was deprecated, so the same rationale probably applies.
Some networks use /31s on p2p links, including peering links to other providers.. :) This means those links can have a .0 or .255 IP. This topic has been rehashed a few times in the past (you can find it in the nanog archives..) people using a /23 and .0 and .255 in dial and dhcp (dsl) pools having problems due to b0rken networks/hosts. My suggestion: get them to clean their act up. This includes Washington state host software vendors that may need to distribute patches for networking stacks with defects in their handling of outbound TCP connections (referenced in an alternate email..) - jared -- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
Current thread:
- Re: The use of .0/.255 addresses., (continued)
- Re: The use of .0/.255 addresses. Peter Corlett (Jun 26)
- Re: The use of .0/.255 addresses. Tony Li (Jun 26)
- Re: The use of .0/.255 addresses. Jon Lewis (Jun 26)
- Re: The use of .0/.255 addresses. Stephen J. Wilcox (Jun 27)
- Re: The use of .0/.255 addresses. Peter Corlett (Jun 27)
- Re: The use of .0/.255 addresses. Stephen J. Wilcox (Jun 27)
- Re: The use of .0/.255 addresses. Iljitsch van Beijnum (Jun 27)
- Re: The use of .0/.255 addresses. Paul Jakma (Jun 27)
- Re: The use of .0/.255 addresses. Paul Jakma (Jun 27)
- Re: The use of .0/.255 addresses. Jon Lewis (Jun 26)
- Re: The use of .0/.255 addresses. Jon Lewis (Jun 27)
- Re: The use of .0/.255 addresses. william(at)elan.net (Jun 26)
- Re: The use of .0/.255 addresses. Howard C. Berkowitz (Jun 26)
- Re: The use of .0/.255 addresses. sthaug (Jun 27)
- Re: The use of .0/.255 addresses. Petri Helenius (Jun 27)
- Re: The use of .0/.255 addresses. Stephen Sprunk (Jun 27)
- Re: The use of .0/.255 addresses. Jonathan McDowell (Jun 27)
- RE: The use of .0/.255 addresses. Tony Hain (Jun 28)
- Re: The use of .0/.255 addresses. Bob Snyder (Jun 28)