It all depends on the types of protocols that a certain VPN offers. Some providers choose to only support a handful of protocols, while others offer a broad range of VPN protocols. Below is a list of some common VPN protocols and the ports that they use: PPTP (Point-to-Point Tunneling Protocol) – This protocol uses port 1723 TCP.

TCP maximum segment size (MSS) is a setting that limits the size of TCP segments, which avoids fragmentation of TCP packets. Operating systems will typically use this formula to set MSS: MSS = MTU - (IP header size + TCP header size) The IP header and the TCP header are 20 bytes each, or 40 bytes total. Is Decentralized Internet the Future of VPN & TCP/IP Oct 29, 2019 VPN Protocols - IPVanish

The answer really depends on your own usage and security needs, neither option out performs the other. TCP. Better Reliability – TCP VPN service offers more stable connections as the protocol guarantees delivery of packets.; Bypass Firewalls – TCP VPN tunnels are rarely blocked since they run on common ports (80, 443).Usually TCP VPN tunnels can bypass even the most strict corporate firewalls.

IKEv2 - Another VPN protocol often available in newer mobile devices. It is typically just as fast as IPSec and offers the same security. Our VPN service uses these ports for Firewall configuration: For OpenVPN, we allow connections via TCP or UDP on ports 443 or 1194. The IPVanish software uses port 443. Windows 10 VPN TCP/IP Settings Oct 16, 2015 reset-network-tcp-ip-stack – OpenVPN Community

Using VPN over TCP 80, 443 and UDP 53,2049? - Information

access-list outside_access_in_1 remark VPN TCP Connection. access-list outside_access_in_1 extended permit tcp any object VPN-TCP eq pptp. access-list outside_access_in_1 remark VPN UDP Connection. policy-map global_policy. class inspection_default. inspect pptp! Relpacing the Ip with my PPTP HOST IP.. Thanks again..