On Tue, 25 Mar 2003 22:10:54 -0800 (PST) Keith Morse <[EMAIL PROTECTED]> wrote:
> On Sun, 23 Mar 2003, David A. Bandel wrote: > > > With non-VLSM CIDR, we can't use /#. We will also get very large > > headaches trying to calculate which IPs are found on a network with > > absurd netmasks like 255.255.255.123. If you don't think this is > > valid, you can try it on your network and see that it works just > > fine with the following values: > > network: 192.168.0.1 > > netmask: 255.255.255.123 > > broadcast: 192.168.0.133 > > hosts: 192.168.0.5, 192.168.0.129 > > yes, for this particular netmask, there are only 2 hosts, other > > non-VLSM netmasks give varying numbers of hosts in different > > patterns scattered about between the network and broadcast numbers. > > > Wild, I've never seen non-contigous netmasks before. Is this legal > per the ip specifiation, or just the result of the xor/nor (sorry > don't remember the boolean operation involved between ip and netmask) > operation? This is 100% in accordance with the RFCs (not sure which one(s), perhaps 1518 and/or 1519). Been a while since I actually read them. And it's AND for IP/Netmask. Ciao, David A. Bandel -- Focus on the dream, not the competition. Nemesis Racing Team motto
pgp00000.pgp
Description: PGP signature
_______________________________________________ Linux-users mailing list [EMAIL PROTECTED] Unsubscribe/Suspend/Etc -> http://www.linux-sxs.org/mailman/listinfo/linux-users