What UDP Port is Used for IKE Traffic from VPN Client to Server?

If you are wondering what UDP port is used for IKE traffic from a VPN client to server, you are in the right place. Keep reading to find out.

What UDP Port is Used for IKE Traffic from VPN Client to Server? Checkout this video:

Introduction

The short answer is that UDP port 500 is used for IKE traffic from a VPN client to server.

IKE stands for “Internet Key Exchange”. IKE is a key management protocol used by IPsec. IKE uses UDP port 500 and uses a main mode or aggressive mode to exchange keys and configure IPsec security associations.

When configuring a VPN client, you will need to specify the IP address or hostname of the VPN server, as well as the pre-shared key. The pre-shared key is used to authenticate the VPN connection. Once the connection is authenticated, IKE will negotiate an IPsec security association using one of the following modes:

-Main Mode: This mode uses six message exchanges to negotiate an IPsec security association. Main mode is more secure than aggressive mode, but takes longer to complete.
-Aggressive Mode: This mode uses three message exchanges to negotiate an IPsec security association. Aggressive mode is less secure than main mode, but completes more quickly.

What is VPN?

VPN stands for Virtual Private Network. It is a method used to add security and privacy to private and public networks, like WiFi Hotspots and the Internet. VPNs are most often used by corporations to protect sensitive data. However, using a personal VPN is becoming more popular as more interactions that were previously conducted in person move online.

There are two main types of VPNs: site-to-site and point-to-site. Site-to-site VPNs connect entire networks to each other, so that all of the devices on both sides of the connection can communicate with each other. This type of VPN is often used by businesses, so that all of the devices on their network can be connected to their private network, no matter where they are physically located. Point-to-site VPNs only connect one device at a time to the VPN server. This type of VPN is often used by individuals, so that they can securely connect to their home network while they are away from home.

IKE traffic uses UDP port 500.

What is IKE?

IKE (Internet Key Exchange) is a key management protocol that is used to set up a secure connection between two computers. IKE uses the Diffie-Hellman algorithm to generate a shared secret key that is used to encrypt and decrypt traffic. IKE traffic uses UDP port 500.