Which ports to unblock for VPN traffic to pass-through?http://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspxLittle Background: Microsoft RRAS server and VPN client supports PPTP, L2TP/IPSec, SSTP and IKEv2 based VPN connection. PPTP control path is over TCP and data path over GRE. L2TP tunnel traffic is carried over IPSec transport mode and IPSec protocol internallyen-USCommunityServer 2.1 SP1 (Build: 61025.2)Interesting Finds: June 14, 2006 AM editionhttp://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspx#435876Wed, 14 Jun 2006 17:52:45 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:435876Jason HaleyEnabling RRAS drops all other traffic (except VPN traffic)http://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspx#440401Thu, 06 Jul 2006 17:12:05 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:440401Routing and Remote Access BlogI have seen this a common customer query: My 2K, 2K3 server was working as DNS, DHCP, AD etc and stopped...VPN server deployment: IP Addressing, Routing/NAT, Single vs two NIC http://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspx#457657Wed, 20 Sep 2006 09:15:20 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:457657Routing and Remote Access BlogHi Folks, <br>I have seen a lot of IP addressing,&amp;amp;nbsp;NIC, NAT&amp;amp;nbsp;related queries&amp;amp;nbsp;in different newsgroups....Securing the server running RRAS role after doing upgrade or fresh install of Windows server 2008http://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspx#2997015Fri, 14 Mar 2008 08:44:59 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2997015Routing and Remote Access Blog<p>Hello, As you know in Windows server 2008 (WS08) we have removed “Basic Firewall” functionality in RRAS</p> Remote Access Design Guidelines – Part 5: Where to place RRAS serverhttp://blogs.technet.com/rrasblog/archive/2006/06/14/which-ports-to-unblock-for-vpn-traffic-to-pass-through.aspx#3213939Tue, 17 Mar 2009 14:51:00 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3213939Routing and Remote Access Blog<p>Hello Customers, In this post, I will highlight on various placement requirements related to RAS server.</p>