Just found great book on CCO! IPSec Design Guide - 2.2 MB, 444 pages. Enjoy ! http://www.cisco.com/cpropart/sync-src/ccstcp/cc/techno/protocol/ipsecur/ipsec/tech/ipsc_dg.pdf Sasa ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]