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3.4.7
ADVANCED -VPN
3.4.7.1
VPN – VPN-IPSEC
Click on Advanced > VPN >VPN- IPSec to get the web page as shown
below:
IPSec (Internet Protocol Security) is a group of protocols designed to
allow flexible, secure and interoperable communication over the Internet.
IPSec is used to establish an encrypted - and therefore, secure - connection
between two points on a network. IPSec provides access control,
connectionless data integrity, data origin authentication, protection against
replay attacks and confidentiality for each IPSec packet. This is achieved
by using headers and trailers on each packet, which provide core pieces of
information
pertaining
confidentiality. The AH (Authentication Header) addresses data origin
authentication, data integrity, and replay protection. The ESP
(Encapsulating Security Payload) header addresses the same features and
also includes data confidentiality or encryption capabilities. By default,
IPSec uses the AH as a minimum level for its capabilities. If data
confidentiality is desired, the AH is replaced with an ESP header for the
to
authentication,
Configuring DRO-250i
data
integrity,
DRO-250i User Manual
74
and
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