Cirkuit Planet MH-1000 Manuale Utente

Multi-Homing Security Gateway User’s Manual 

addresses of the hosts must be public IP addresses. 

 

 

 

 

Transport Mode 

- This mode is used to provide data security between two networks. It provides protection for the entire IP 

packet and is sent by adding an outer IP header corresponding to the two tunnel end-points. Since tunnel 

mode hides the original IP header, it provides security of the networks with private IP address space. 

 

 

 

AH is typically applied to a data packet in the following manner: 

Original Packet 

IP Header 

TCP

Data

Org IP Header

TCP

Data 

Packet with IPSec Authentication Header 

AH 

New IP Header 

Authenticated 

 

 

 

 

 

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