Trending IPSec Discussions

Which port number and protocol should be allowed through the firewall , for a IPSEC site to site vpn ?‎

What is the difference between TCP and UDP ? Justify with a real life example !‎

Well, I understand TCP is a connection-oriented service and UDP, a connection-less service. Please state the difference in their performance and which one is better with ‎ ... See More

What is the exact nat traversal technique used to overcome ipsec end-to-end connectivity problem due to nating?‎

How do you find "Specialities" feature in Bayt useless?‎

At first, it was a good feature intended to deliver a technical forum-like method that can help others to build reputation which in turn help them to get jobs. Unfortunat‎ ... See More

What's the difference between GRE and IPSEC? Where we use them?‎

Why does device authentication take place last in IKEv1 phase 1 main mode?‎

Whether you implement IPSec S2S or RA, three2-way handshake exchanges must take place in order to secure the management connection.‎

How to connect to different office using same subnet via VPN ipsec?‎

Juniper‎

Given the SPD and SAD, explain the processing of a user packet whether protected by IPSec or unprotected in both inbound and outbound directions?‎

IPSec VPN employs special databases in order to keep track of protected (encrypted) traffic. Each database is responsible for specific functions to do on a user traffic.‎

What is the difference between IPSec over GRE and GRE over IPSec? ‎

 

Answer added by  Javed Shaik , Technical Consultant, Cisco Systems - India
10 years ago

I would like to add one more point to other's answers, TCP is called connection oriented because MSS (Maximum Segment Size) is negotiated during the three way handsh ... See More