Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: RFC1918 conformance

  • From: Alex P. Rudnev
  • Date: Tue Feb 11 14:27:02 1997

Sorry, but while I was looking to this list, I just reminded interesting 
issue. Why IANA did not reserved 223.255.0.0/16 or something simular; by 
other words, I'd like to have short (256, 512, 1024) private address 
space in the END of total address space for the normal IP (excluding D 
class etc).

For example. I have a lot of CISCO routers with OSPF protocol. Thnis 
crazy IOS use highest loopback interface address as router-ID address; I 
use loopbacks to install load balancing etc. and I can't prevent 
loopbacks from being equal on the different routers. That's why I hardly 
need some IP addresses for 'Loopback 98' interface to use it as 
router-ID; and this have to be higher than any user's addresses. I use 
233.255.254.0/24 for this purposes, but it's not reserved address.

This is one, simple, example why it's nessesary to reserve some short 
address space in the begin and in the end of total addresses.




On Tue, 11 Feb 1997, Tony Bates wrote:

> 
>  Andrew Partan <asp@partan.com> writes:
> 
>   * They sure look reserved to me:
>   * note% whois RESERVED
>   * IANA (RESERVED-1)               RESERVED                               0.0.
>   * 0.0
>   * IANA (RESERVED-3)               RESERVED                             128.0.
>   * 0.0
>   * IANA (RESERVED-4)               RESERVED                           191.255.
>   * 0.0
>   * IANA (RESERVED-5)               RESERVED                         223.255.25
>   * 5.0
>   * IANA (RESERVED-7)               Reserved                   64.0.0.0 - 95.0.
>   * 0.0
>   * IANA (RESERVED-8)               Reserved                  96.0.0.0 - 126.0.
>   * 0.0
>   * 
>   * Actually it looks like I should add the top 1/2 of the old A space as well.
>   *
> This would be good as I report each week in my report possible bogus
> routes but no one seems to care to filter (or fix this). Today it says:
> 
> *** Bogus 69.1.0.0/16 from AS1849
> *** Bogus 69.2.0.0/16 from AS1849
> *** Bogus 90.0.0.0 from AS4747
> *** Bogus 103.40.99.0/24 from AS3249
> 
> 		--Tony
> 

Aleksei Roudnev, Network Operations Center, Relcom, Moscow
(+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 239-10-10, N 13729 (pager)
(+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax)

- - - - - - - - - - - - - - - - -




Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.