What's the difference between VPN pass-through and multi-tunneling?

Can you explain this for me?

Digg This!     StumbleUpon     Del.icio.us

RELATED CONTENT Enterprise security Are you on a domain name system (DNS) blacklist database? Where can I find a sample security audit report? How can I run my own? Why are TCP/IP networks considered unsecured? Troubleshooting networks: Can vendor software self-install firewalls? How can I block my competitor's IP address range from my website? What software monitors and locks users from accessing my router? Why do we need IP security at the network layer? What is a genetic algorithm and where can I learn more about them online? Why implementing adequate security challenges LAN administration What security measures are recommended for each level of the TCP/IP model?

RELATED RESOURCES 2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems Search Bitpipe.com for the latest white papers and business webcasts Whatis.com, the online computer dictionary

Companies that do not implement true IPsec often advertise their products as VPN pass-through. Just because the device can pass IPsec does not mean they can fully support it.

Not all products handle IPsec the same way and that is the case with pass-through. Devices that support pass-through break the NAT traversal and usually are limited to only one host behind the firewall.

Multi-tunneling allows the system to discriminate and forward traffic based on destination. Devices that support multi-tunneling can connect VPN users and sort each of them into their own establishment tunnel.