Q

Does VPN use TCP/IP?

Does VPN use TCP/IP?
Donna,
A VPN operates at layer-3 using the IPSec protocol. It supports TCP, UDP and other layer-3 protocols. Some IPSec VPNs also use UDP and TCP to encapsulate IPSec packets in order to pass through NAT firewalls, routers and proxies.
Best,
Mark
This was first published in March 2003
This Content Component encountered an error

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSDN

SearchEnterpriseWAN

SearchUnifiedCommunications

SearchMobileComputing

SearchDataCenter

SearchITChannel

Close