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RFC 1918: There should be a reference to the other non globally...

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Comment by Philippe
Submitted on 2/27/2004
Related RFC: RFC 1918
Rating: Rate this comment: Vote
There should be a reference to the other non globally routable IP addresses used or referenced in other RFCs, and that can be used only in private LANs or with explicit mutual private agreements between two networks, notably:

* LAN Addresses currently documented in RFC 1918:
- private class A
  10.0.0.0 to 10.255.255.255
- private class B
  172.16.0.0 to 172.31.255.255
- private class C
  192.168.0.0 to 192.168.255.255

* broadcast addresses
  0.0.0.0
  255.255.255.255

* class A null network (internal host)
  0.0.0.1 to 0.255.255.255

* Class E (currently reserved, don't use)
  240.0.0.0-247.255.255.255

* Loopback network addresses (internal host, RFC 3330)
  127.0.0.0 to 127.255.255.255

* Local-Link (for auto-DHCP)
  169.254.0.0 to 169.254.255.255

* Testnet addresses (for tests only)
  192.0.2.0 to 192.0.2.255

* Sample addresses (for documentation purpose, or for default configurations of softwares)
  198.18.0.0 to 198.19.255.255

* Class D (IPv4 multicast, only if multicast routing is not supported by a host or application)
  224.0.0.0-239.255.255.255

The references section should allow finding them all, or a newer RFC published that documents them all.

Other bogon addresses include currently unallocated /8 blocks reserved by IANA for Unicast (but that may be used later), which are today (February 2004):
  1.0.0.0 to 2.255.255.255
  5.0.0.0 to 5.255.255.255
  7.0.0.0 to 7.255.255.255
  23.0.0.0 to 23.255.255.255
  27.0.0.0 to 27.255.255.255
  31.0.0.0 to 31.255.255.255
  36.0.0.0 to 37.255.255.255
  39.0.0.0 to 39.255.255.255
  41.0.0.0 to 42.255.255.255
  49.0.0.0 to 50.255.255.255
  58.0.0.0 to 59.255.255.255
  71.0.0.0 to 79.255.255.255
  85.0.0.0 to 126.255.255.255
  173.0.0.0 to 187.255.255.255
  189.0.0.0 to 190.255.255.255
  223.0.0.0 to 223.255.255.255
(See the www.iana.org web page for reference)

All these addresses are known as "bogon addresses". See also http://www.cymru.com/Documents/bogon-list.html, which is regularly updated...

Shamely, on the Internet, the most common user of these bogon addresses is the US Department of Defense, apparently to spy on other networks with secret routes. ISPs, net admins in other countries, as well as the community should know that and use the appropriate filters in their routers for these unallocated prefixes.

Comment: the US DoD should comply to the Internet usage rules and make more trustable private arrangements with the worldwide networks on which it operates, without polluting other networks with its bogous routes.

 
 
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