Sites INTERESSANTES SOBRE INFRA DE REDES

http://www.marceloeiras.com.br/cisco/

http://fabiozibiani.wordpress.com/2011/10/06/instalacao-e-configuracao-do-nps-e-rras-no-windows-server-2008-r2/

http://yotta.blog.br/2012/03/router-comandos-basicos-show-run/

http://www.ti-redes.com/switching/configura%C3%A7%C3%B5es%20basicas/comandos-basicos-de-switches-cisco/

http://blog.ccna.com.br/2007/10/21/tutorial-basico-acls-para-o-exame-ccna/