What is NAT Traversal?

NAT traversal refers to the common problem in TCP/IP networkingof establishing connections between hosts in private TCP/IPnetworks which use NAT devices

Client-based IPsec VPN connections often do not work when passingthrough a NAT device as the IKE and IPsec protocols were notdesigned to work through NAT. NAT Traversal is an add-on to the IKEand IPsec protocols that allows them to work when beingNATed.

NAT traversal is only used if both endpoints support it.

D-Link products that currently supportNAT traversal include

  • DS-601/605 (D-Link VPN software)
  • DI-804HV (from firmware 1.43)
  • DFL-200/700/1100
  • DFL-800/1600/2500
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