I strongly object the idea of memorizing stuff that is dynamic in nature such as a bogon list. We have more important stuff to remember, so even those 5 networks would be a complete rubbish to me if I see them in the list of valid public IP addresses. And to put an icing on this cake RFC3330 is already obsolete: http://tools.ietf.org/html/rfc5735 I just remember whatever I see in my day-to-day life, i.e. RFC1819, self-assigned IP, test network and enough with it ;)
Eugene From: [email protected] [mailto:[email protected]] On Behalf Of Alexei Monastyrnyi Sent: Saturday, August 11, 2012 2:56 AM To: Marta Sokolowska Cc: CCIE Security Maillist Subject: Re: [OSL | CCIE_Security] RFC3330 Apparently those three /8 blocks have been recently reclaimed and allocated, check here for historical data http://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks A. On 8/11/2012 7:09 PM, Marta Sokolowska wrote: Matt, unfortunately, we have to memorize all those networks as a preparation for the exam. If you have IPExpert's labs, they explain in a very nice way how to remember all those addresses. RFC 1918 addresses are quite obvious, but notice that many of those RFC3330 addresses are the beginning or ending of classess A,B,C. Plus you have to exclude classes D and E. Additionally, if you did some RTBH labs, they're using TESTNET: 192.0.2.0/24<http://192.0.2.0/24>. And sometimes you can see the 169.254.0.0/16<http://169.254.0.0/16> address on Windows PC when it can't get IP address using DHCP. So two network less to remeber :-) So you end up having only five networks to memorize :-) 14.0.0.0/8<http://14.0.0.0/8> 24.0.0.0/8<http://24.0.0.0/8> 39.0.0.0/8<http://39.0.0.0/8> 192.88.99.0/24<http://192.88.99.0/24> 198.18.0.0/15<http://198.18.0.0/15> Marta Sokolowska. 2012/8/11 Matt Hill <[email protected]<mailto:[email protected]>> Hi Everyone, A few questions about the place talk about RFC3330 and blocking corresponding addresses. Are we really supposed to remember all of these addresses? RFC1918 I understand, along with a few others, but I really cant see how one could expect to remember 30-odd prefixes eidetic. I mean I'm pretty good, but it's not like my brain has direct feed from cymru.com<http://cymru.com>. Cheers, Matt CCIE #22386 CCSI #31207 _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> -- -- Marta SokoĊowska. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com<http://www.PlatinumPlacement.com>
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
