If you’re wondering what UDP port is used for IKE traffic from VPN clients to servers, you’re in the right place. Keep reading to find out.
Checkout this video:
IKE uses UDP port 500 for phase 1 traffic and UDP port 4500 for phase 2 traffic. IKEv2 uses UDP port 500 for both phase 1 and phase 2 traffic.
UDP Port Number
The UDP port number used for IKE traffic from VPN Client to Server is 500.
UDP port 500 is used for IKE traffic.
UDP 500 is the default port used by IKE (Internet Key Exchange) for VPN traffic from a VPN client to server.
IKE uses UDP port 500 for ISAKMP phase 1 traffic from VPN Client to Server and IPSecNAT-T traffic from VPN Client to Server.
IKE traffic uses UDP port 500.