Ipsec Enabled Vpn; Ipsec Connection Types - Alcatel-Lucent OmniAccess 700 Cli Configuration Manual

Release versions: 2.2, 2.2-r02, 2.3

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Internet Protocol Security (IPsec) provides enhanced security features, such as

confidentiality and more comprehensive authentication. IPsec has two encryption

modes: tunnel and transport. Tunnel mode encrypts the header and the payload

of each packet while the transport mode encrypts only the payload. Systems that

are IPsec compliant can take advantage of this protocol.

This section lists various types of IPsec connections:

"NAT-pass-through"

"Host to Host"

"Host to Subnet"

"Subnet to Subnet"

This connection is for an individual computer behind a firewall to make a

connection to a remote computer or network. The firewall that is protecting the

individual computer does not participate in the VPN connection or authenticate it,

but rather allows the connection "through" the firewall. A home connection that is

connected to a company network is an example of this type of connection.

This connection is for connecting two computers together. The subnet declaration

is not used in the connection configuration. This is commonly used as a second

tunnel between subnet-to-subnet gateway for WINS and/or DNS services that are

impossible for the gateway machines to participate in through the subnet tunnel.

This connection is for a single computer to connect to a remote network. This is

typically known as the "Road Warrior" connection and the remote computer is not

behind a firewall. The IP address that the remote computer will be using is

normally not known for configuration.

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IPsec VPN Overview

Troubleshooting