UDP ports 500, 1701, and 4500; IKEv2 uses: UDP ports 500; PPTP uses: TCP ports 1723 or Protocol 47 (GRE) If you can connect over any of those, you should be able to use at least one of our connection methods. In addition, the PIA application pings our gateways over port 8888. This is used to connect you to the server with the lowest latency
vpn - How to direct a UDP Packet through a vps tunnel How to direct a UDP Packet through a VPN Tunnel over a WAN? Have been trying to set up a instant messenger service though the office network and it dose not have UDP flooding or UDP broadcasting. Not going through any firewalls, its a message service for just the users inside the network. Any information or ideas would be wonderful. Contrail Cloud Solution With MPLS-Over-UDP Overlays Jan 04, 2017 Slow rdp connection when connected to vpn - Networking
Whereas IPSec over UDP, similar to NAT-T, is used to encapsulate the ESP packets using a UDP wrapper. Useful in scenarios where the VPN clients do not support NAT-T and are behind a firewall that does not allow ESP packets to pass through. IN IPSec over UDP, the IKE negotiations still use UDP port 500.
Contrail Cloud Solution With MPLS-Over-UDP Overlays Jan 04, 2017 Slow rdp connection when connected to vpn - Networking Aug 05, 2014
Nov 21, 2019
TCP vs UDP | OpenVPN: Difference between TCP and UDP