Question

What is the benefit to using IPSEC for network connections with respect to users sending files? What is the difference between tunneling and transport layer IPSEC?

Answer 1

First Part:

The benefit to using IPSEC for network connections are:

(i) It provides confidentiality.

(ii) It ensures authentication.

(iii) The security is provided without any major modification to the user computer.

(iv) Allows security control.

Second Part:

The differences between tunneling and transport layer IPSEC are:

(i) Tunneling is implemented in site-to-site VPN scenarios where transport layer IPSEC is implemented for client-to-site VPN scenarios.

(ii) Tunneling support NAT traversal but transport layer IPSEC does not support NAT traversal.

(iii) In tunneling payload MSS is less but in transport layer IPSEC the payload MSS is much more.

Hope this helps.