security - OpenVPN vs. IPsec - Pros and cons, what to use

OPENVPN Created in 2002, OpenVPN is an open source tool used to build site-to-site VPNs with the SSL/TLS protocol or with pre-share keys. It has the role to securely tunnel the data through a single TCP/UDP port over an unsecured network such as Internet and thus establish VPNs. Access Server For VoIP Security | OpenVPN The use of OpenVPN technology provided security for both the secure VoIP Server at the data center and VoIP communications. VoIP encryption is in place, the VoIP solution is less complicated without the need to deal with the complexities of NAT traversal, and the employees can use their device of choice to conduct business. Dynamic DNS and NAT Traversal - SoftEther VPN Project

NAT traversal and IPsec may be used to enable opportunistic encryption of traffic between systems. NAT traversal allows systems behind NATs to request and establish secure connections on demand. Hosted NAT traversal. Hosted NAT traversal (HNT) is a set of mechanisms, including media relaying and latching, used by intermediaries.

Eine einfache Outbound NAT Regel (Interface: IPSEC, Source Subnet: 172.20.19.0/24, Dest Subnet: 172.24.22.0/24) hat leider nicht ausgereicht um das gewünschte Ergebnis zu erzielen. Achso…eine Route auf dem Client habe ich bereits angelegt, dass Traffic in das 172.24.22.0/24 Netz über den OpenVPN Tunnel gerouted werden soll.

Routing with NAT traversal and UPnP - SearchNetworking

The NAT-T is a standardized protocol, but the VPN clients need to negotiate the use of it with the VPN gateway only when there is actually a NAT device between them. To avoid the problems related to the use of L2TP/IPSec, starting with the release 1.0.beta7 of Zeroshell, it is possible use configure OpenVPN to act as VPN gateway for the Configuring a VPN Tunnel using NAT-Traversal Configuring a VPN Tunnel using NAT-Traversal Summary Various Internet service providers (ISP) NAT their connection meaning users may not get a public IP but do get internet access. This can cause issues when setting up a VPN tunnel. This article explains how to … SoftEther VPN - Wikipedia