nanog mailing list archives

Re: IRR listing of IANA-reserved, a question..


From: "Marshall Eubanks" <tme () multicasttech com>
Date: Wed, 04 Sep 2002 09:54:57 -0400


On Wed, 04 Sep 2002 10:08:00 -0400
 David Charlap <David.Charlap () marconi com> wrote:

John M. Brown wrote:

In the last 72 hours I've seen over 3GB of data hit a network
I play with with source IP's of IANA-RESERVED space.

Just out of curiosity, do you know that these are bogus source 
addresses?  Some of the IANA-RESERVED block is actually valid and is 
used by IANA's computers.

My company was blocking all of the IANA-RESERVED space for a while, 
until we discovered that the IANA web server is using an address in that 
space.

This seems like an unwise overlaying of the IANA-RESERVED space to me.

Why can't IANA allocate itself a /20 (or whatever it needs) and keep
IANA-RESERVED space for unallocated addresses (plus maybe
experimental uses that can and should be filtered at every border).

Regards
Marshall Eubanks
that 


Note:
      $dig www.iana.org a

      ; <<>> DiG 2.0 <<>> www.iana.org a
      ;; ->>HEADER<<- opcode: QUERY , status: NOERROR, id: 6
      ;; flags: qr rd ra ; Ques: 1, Ans: 1, Auth: 6, Addit: 6
      ;; QUESTIONS:
      ;;      www.iana.org, type = A, class = IN

      ;; ANSWERS:
      www.iana.org.   68055   A       192.0.34.69
      ...

and:
      $whois -h whois.arin.net 192.0.34.69
      IANA RESERVED-192 (NET-192-0-0-0-1)
                                        192.0.0.0 - 192.0.127.255
      ICANN
      c/o Internet Assigned Numbers Authority ICANN (NET-192-0-32-0-1)
                                        192.0.32.0 - 192.0.47.255

Various people have reported seeing IANA-RSERVED get announced
via BGP at different parts of the net.

Again, bogus addresses or legitimate IANA servers?  Not everything in 
IANA-RESERVED is bogus.

-- David



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