nanog mailing list archives
Re: .255 addresses still not usable after all these years?
From: Jared <nanog () namor ca>
Date: Fri, 13 Jun 2008 18:01:28 -0500
Mike Lewinski wrote:
David Hubbard wrote:I remember back in the day of old hardware and operating systems we'd intentionally avoid using .255 IP addresses for anything even when the netmask on our side would have made it fine, so I just thought I'd try it out for kicks today. From two of four ISP's it worked fine, from Verizon FIOS and Road Runner commercial, it didn't. So I guess that old problem still lingers?The TCP/IP stack in Windows XP is broken in this regard, possibly in Vista as well, though I've yet to have the displeasure of finding out. I have a router with a .255 loopback IP on it. My Windows XP hosts cannot SSH to it. The specific error that Putty throws is "Network error: Cannot assign requested address".At least if I ever need to completely protect a device from access by Windows users, I have a good option :)Mike
We had to split our assigned ranges (PPP/PPPoE) into /24, even if it were assigned to the (NAS, BRAS, etc) in larger chunks. It seems customers who were assigned the .0/.255 could get out there - but certain sites (IIS it seemed) would refuse to talk back.
I forget if I tested microsoft.com like this...
Current thread:
- Re: .255 addresses still not usable after all these years?, (continued)
- Re: .255 addresses still not usable after all these years? Peter Dambier (Jun 13)
- Re: .255 addresses still not usable after all these years? Kameron Gasso (Jun 13)
- Re: .255 addresses still not usable after all these years? Mark Smith (Jun 13)
- Re: .255 addresses still not usable after all these years? Tim Durack (Jun 13)
- RE: .255 addresses still not usable after all these years? Ian Henderson (Jun 13)
- Re: .255 addresses still not usable after all these years? David Coulson (Jun 13)
- Re: .255 addresses still not usable after all these years? Florian Weimer (Jun 14)
- Re: .255 addresses still not usable after all these years? Mike Lewinski (Jun 13)
- Re: .255 addresses still not usable after all these years? William Allen Simpson (Jun 13)
- Re: .255 addresses still not usable after all these years? Jared (Jun 13)
- Re: .255 addresses still not usable after all these years? Greg VILLAIN (Jun 14)