IPsec Protocol

This page provides information on the IPsec Protocol detected by the Netify DPI engine. The protocol operates on 3 ports registered with the IANA. The port information is provided below.

Protocol Description

The IPsec (Internet Protocol Security) is a secure protocol suite that authenticates and encrypts network traffic for VPN services. It is a very widely used VPN protocol.

Please see the protocol catalog page for information on other protocols detected by Netify DPI.

Protocol Details

ID
79
Full Name
Internet Protocol Security
Abbreviation
IPsec
Category Tag
vpn
Category
VPN
Home Page
IPsec
Introduced
Version 2.88

Protocol Ports - RFC

UDP 4500
IPsec NAT-Traversal
TCP 500
Isakmp
UDP 500
Isakmp

Best Practices

VPNs can not only be used to connect remote locations, but also be used to bypass your firewall/DNS policies. Investigate any unauthorized use on your network.

Related Protocols

Review the VPN category suite below, or explore the complete protocol catalog.