Chiggins Asked: 2011-02-23 14:22:28 +0800 CST2011-02-23 14:22:28 +0800 CST 2011-02-23 14:22:28 +0800 CST Ports Needed Open for Windows VPN 772 I just installed a Routing and Remote Access VPN service on Windows Server 2008, though I'm not totally sure what ports I need open for that, or what type of VPN I'm using. L2TP, PPTP? Thanks a bunch! windows-server-2008 vpn 1 Answers Voted Best Answer Zoredache 2011-02-23T14:36:07+08:002011-02-23T14:36:07+08:00 PPTP uses port TCP/1723 and the GRE(47) protocol. L2TP is usually transported over IPSEC which uses protocol AH(51), ESP(50), and UDP/500. See: http://support.microsoft.com/kb/233256 http://support.microsoft.com/kb/263925 http://support.microsoft.com/kb/241251 http://technet.microsoft.com/en-us/library/cc754634(WS.10).aspx
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