Subnetting Post: 302993564

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Special Forums IP Networking Subnetting Post 302993564 by drysdalk on Saturday 11th of March 2017 06:53:42 AM

03-11-2017

Registered User

Hi,

That's almost certainly not correct, no. Your Internet provider is extremely unlikely to have the whole of 46./8 allocated to them. That'd be over sixteen million usable IPs, and a fairly large chunk of the Internet. In all likelihood the network range is 46.126.40/24, but it could be anything smaller or a bit larger than that.

My advice in understanding this whole thing would be: forget about all this Class A, B, C stuff. The important thing is the netmask. In day-to-day life you'll seldom encounter any external Internet-live IP ranges that are larger than a /24. In private network ranges it's not unusual for /8 or /16 to be seen, certainly.

I think at this point it would also be helpful to explain what it is you're trying to do, and why you think you need a huge chunk of the 46/8 part of the Internet to do it.

Edited to add: also, there's no way you or anyone anywhere can buy a whole Class A ! The IPv4 address space is almost entirely exhausted worldwide at this point. What almost everyone on domestic or small office broadband does is use an internal private network range, like 10.x.x.x or 192.168.x.x, and then use NAT to talk to the outside world on a single IP or far smaller number of live IPs.

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LEARN ABOUT XFREE86

whois.conf

WHOIS.CONF(5)							 Debian GNU/Linux						     WHOIS.CONF(5)

NAME

       whois.conf - alternative WHOIS servers list for whois client

SYNOPSIS

       /etc/whois.conf

DESCRIPTION

       This file contains a list of WHOIS servers which can augment or override the built-in list of the client.

       It's  a plain text file in ASCII encoding. Each line consists of two fields: a pattern to match WHOIS object identifier and a corresponding
       WHOIS server domain name.

       Fields are separated by non-empty sequence of space or a tabular characters.  A line starting with a hash character is a free  comment  and
       it's not considered.

       The  pattern is case-insensitive extended regular expression if whois client has been compiled with POSIX regular expressions support. Oth-
       erwise, simple case-insensitive suffix comparison against WHOIS object identifier is used.

       Internationalized domain names (IDN) must be specified in ascii-compatible encoding (ACE) format.

EXAMPLE

       .nz$		 nz.whois-servers.net
       # Hangul Korean TLD
       .xn--3e0b707e$	 whois.kr
       # Private ASNs
       ^as645(1[2-9]|2[0-9]|3[0-4])$	whois.example.net

FILES

       /etc/whois.conf

SEE ALSO

       whois(1)

AUTHOR

       This manual page was written by Petr Pisa <ppisar@redhat.com> and is licensed under the terms of the GNU General Public License, version  2
       or higher.

Petr Pisa							   9 April 2013 						     WHOIS.CONF(5)

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whois.conf