If you’re wondering what UDP port is used for IKE traffic from VPN clients to servers, you’re in the right place. In this article, we’ll explain what IKE is and what UDP port it uses.
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IKE uses UDP port 500 for both initial contact and all further communication.
The VPN Client
The VPN Client uses UDP port 500 for IKE traffic from the VPN Client to the VPN server. You can verify this by checking the properties of the connection on the “General” tab. The “Type of VPN” should be “IKEv2”.
The VPN Server
IKE traffic from a VPN client to a VPN server is sent to UDP port 500.
UDP port 500 is used for IKE traffic from VPN client to server.
UDP port 500 is used for IKE traffic from VPN clients to servers.