GeoIP Location List

Posted on March 9, 2011 by Kerry Cordero in Routing & Switching

You can download the excel file here. Or go to this website to get the latest updated list.

IPv4 VLSM / CIDR Chart

Posted on August 24, 2010 by Kerry Cordero in Routing & Switching

[pdf-ppt-viewer href="document_uri" width="viewer_width" height="viewer_height"] [pdf-ppt-viewer href="http://cordero.me/docs/cisco/VLSM_Subnet_Chart.pdf" width="600" height="600"]

Private Address Space – RFC 1918

Posted on January 29, 2010 by Kerry Cordero in Routing & Switching

The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets: 10.0.0.0 – 10.255.255.255 (10/8 prefix) 172.16.0.0 – 172.31.255.255 (172.16/12 prefix) 192.168.0.0 – 192.168.255.255 (192.168/16 prefix)