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ADW-4302v2 User Guide
Because the IKE and IPSec connections are separate, they have different SAs (secu-
rity associations).
Policies
VPN configuration settings are stored in Policies.
Note that different vendors use different terms. Generally, the terms "VPN Policy",
"IPSec Policy", and "IPSec Proposal" have the same meaning. However, some ven-
dors separate IKE Policies (Phase 1 parameters) from IPSec Policies (Phase 2
parameters).
For the ADW-4302v2; each VPN policy contains both Phase 1 and Phase 2 parame-
ters (if IKE is used). Each policy defines:
• The address of the remote VPN endpoint
• The traffic which is allowed to use the VPN connection.
• The parameters (settings) for the IPSec SA (Security Association)
• If IKE is used, the parameters (settings) for the IKE SA (Security Association)
Generally, you will need at least one (1) VPN Policy for each remote site for which you
wish to establish VPN connections.
It is possible, and sometimes necessary, to have multiple Policies for the same remote
site. However, you should only Enable one (1) policy at a time.
VPN Configuration
The general rule is that each endpoint must have matching Policies, as follows:
VPN Endpoint
address
Each VPN endpoint must be configured to initiate or accept
connections to the remote VPN client or Gateway.
Usually, this requires having a fixed Internet IP address. How-
ever, it is possible for a VPN Gateway to accept incoming
connections from a remote client where the client's IP address
is not known in advance.
Local & Remote
LAN definition
This determines which outgoing traffic will cause a VPN connec-
tion to be established, and which incoming traffic will be
accepted. Each endpoint must be configured to pass and ac-
cept the desired traffic from the remote endpoint.
If connecting 2 LANs, this requires that:
• Each endpoint must be aware of the IP addresses used on
the other endpoint.
• The 2 LANs MUST use different IP address ranges.
IKE parameters
If using IKE (recommended), the IKE parameters must match
(except for the SA lifetime, which can be different).
IPSec parame-
ters
The IPSec parameters at each endpoint must match.
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