RE: [MLUG - DISCUSSION] What is this

["Spurling, Shannon " <EMAIL:PROTECTED>]

They are both reserved ranges that every one uses on private networks.
Depends on where you are at. The reserved networks are 192.168.0.0/16,
10.0.0.0/8, 127.0.0.0/8, and 172.16.0.0/12. This has got to be a local
thing, because any ISP worth their salt routes that to /dev/null to prevent
people who use those ranges internally from stepping on each others toes. In
fact, I heard someone say that those reserved ranges were not made for
people to use like this, and in the future it might break something. An
other interesting range is the Class D range of addresses (224.0.0.0/4).
Those are reserved for Multicast addressing. If you ever see one of those,
then it's not what you would normally think it is. I had someone complain
that they were getting hits from a Multicast address. Turned out that some
application was using multicast, and they didn't realize that's what it was.
Just some things to watch for.


Shannon Spurling
WAN Engineer -Specialist

MOREnet, Network Services, Core Network
3212 Le Mone Industrial Blvd.
Columbia, MO 65201

Main:(573) 884-7200   Fax:(573)884-6673

EMAIL:PROTECTED
EMAIL:PROTECTED

-----Original Message-----
From: Jim Oxenhandler [mailto:EMAIL:PROTECTED]
Sent: Thursday, August 02, 2001 12:42 AM
To: EMAIL:PROTECTED
Subject: RE: [MLUG - DISCUSSION] What is this


 
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Thanks.

Jim

- -----Original Message-----
From: EMAIL:PROTECTED
[mailto:EMAIL:PROTECTED]On Behalf Of Mike Miller
Sent: Thursday, August 02, 2001 12:33 AM
To: MLUG Discussion
Subject: Re: [MLUG - DISCUSSION] What is this


On Wed, 1 Aug 2001, Jim Oxenhandler wrote:

> Does anyone know what this ip is.
>
> [EMAIL:PROTECTED log]# grep -c 10.18.96.1:67 messages
> 6011
>
> The internal net is 192.168.1.1 ip's.


Use 'whois' with the arin server as below, or go to
http://whois.arin.net/whois/

Mike


# whois -h whois.arin.net 10.18.96.1

IANA (RESERVED-6)
   Internet Assigned Numbers Authority
   4676 Admiralty Way, Suite 330
   Marina del Rey, CA 90292-6695
   US

   Netname: RESERVED-10
   Netblock: 10.0.0.0 - 10.255.255.255

   Coordinator:
      Internet Corporation for Assigned Names and Numbers 
(IANA-ARIN)  EMAIL:PROTECTED
      (310) 823-9358

   Domain System inverse mapping provided by:

   BLACKHOLE.ISI.EDU            128.9.64.26
   BLACKHOLE.EP.NET             198.32.1.116

   These blocks are reserved for special purposes.
     Please see RFC 1918 for additional information.

   Record last updated on 16-May-2001.
   Database last updated on 1-Aug-2001 23:18:04 EDT.

The ARIN Registration Services Host contains ONLY Internet
Network Information: Networks, ASN's, and related POC's.
Please use the whois server at rs.internic.net for DOMAIN related
Information and whois.nic.mil for NIPRNET Information.

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