NAT Traversal: Peace Agreement Between NAT and IPSec

NAT-T is an Internet Draft proposed to IETF to overcome the problems faced when an IPSec traffic is intended to pass through a NAT device. NAT and IPSec is very hard to use together without a standard way which would provide simple management and interoperability between vendors. After merging two different works from different vendors, NAT-T is the most promising solution for the near future so that some vendors started implementing it in their VPN products.