Hi, I got an existing solution with shorewall where I can differentiate tun10 from tun+ as different zone. For example: /etc/shorewall/zones A ipv4 B:A ipv4 /etc/shorewall/interfaces A tun+ B tun10 Now, I have a requirement to add tun11 to zone B. When I do this in interfaces config: A tun+ B tun10,tun11 It doesn''t like it (although it''s ok when performing shorewall check). If the above isn''t possible, is there an issue of running zone B with tap interfaces? Is it going to break my existing routing and firewall rules (because after reading diff between tap and tun, tap is for bridgign)? Or it''s just a straight change over from tun to tap? (I know that I need to remove the nesting zone as I don''t need them anymore). My shorewall version: perl 4.2.9 with openvpn. Thank you. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what''s new with Crystal Reports now. http://p.sf.net/sfu/bobj-july