If you’re wondering what UDP port is used for IKE traffic from VPN client to server, you’re in the right place. In this blog post, we’ll explain what IKE is and how it works, as well as what UDP port it uses.
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Introduction
VPNs use a variety of protocols to tunnel traffic through an encrypted connection. One of these protocols is Internet Key Exchange, or IKE. IKE uses UDP port 500 to establish an initial phase 1 connection between two devices. This phase 1 connection will then be used to negotiate a phase 2 connection, which is used to encrypt traffic passing between the two devices.
The Three Main Ports Used for VPN Traffic
IKE uses UDP port 500 for security associations and authentication. VPN clients and servers use this port to establish Secure Sockets Layer (SSL) or IPsec connections. L2TP uses UDP port 1701 for virtual private networking (VPN) connections.
The Port Used for IKE Traffic
UDP port 500 is used for IKE traffic from VPN client to server.
Conclusion
In conclusion, the UDP port used for IKE traffic from VPN client to server is 500.