Re: Name Resolution Problems...
Re: Name Resolution Problems...
- Subject: Re: Name Resolution Problems...
- From: "Justin C. Walker" <email@hidden>
- Date: Wed, 29 Oct 2003 18:34:22 -0800
On Monday, October 27, 2003, at 04:58 AM, William Goedicke wrote:
Dear Gareth -
"Gareth" == Gareth Eason <email@hidden> writes:
Gareth> I use a .local domain for my local internal network
Gareth> and have a DNS server which is authoritative for that
Gareth> domain. So other systems in my building might be
Gareth> server1.homenet.local and server2.homenet.local. These
Gareth> resolve to 192.168.0.x addresses. I've tested using dig.
I have a similar setup that works fine with my linux, M$ and OS X
machines. This is a shot in the dark but, I would try changing
the third octet to something other than 0 (don't use 256 or 128
either). I'm pretty certain that the RFC has something about not
using these numbers in regular IP addresses.
To avoid the propagation of incorrect or misleading information:
There is nothing wrong with using those values, per se. You have to
know the "net mask" in use on the subnet to understand which addresses
should not be used, and typically, the convention is that
"all zeros at the end of the address" is not a good idea (because
really old BSD systems used that type of address as a broadcast
address). "All ones at the end of an address" is the broadcast address
for all systems that I'm aware of.
For example, with the above addresses (192.168.0.x) and a netmask of
255.255.255.0, address 192.168.0.0 should be avoided (but isn't
"illegal") and 192.168.0.255 is the subnet broadcast address (which the
network stack will turn into a media broadcast packet, e.g., on
Ethernet). All other values of 'x' (from 1 to 254) are legit.
Regards,
Justin
--
Justin C. Walker, Curmudgeon-At-Large *
Institute for General Semantics | If you're not confused,
| You're not paying attention
*--------------------------------------*-------------------------------*
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