My List of Study

Firewall

VPN

INE CCNA

ASA Walkthrough

http://www.ietf.org/rfc/rfc3882.txt - black/sink hole

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6642/prod_white_paper0900aecd80313fac.pdf - black/sink hole

http://www.nanog.org/meetings/nanog28/presentations/sink.pdf - black/sink hole

Library