D-Link DFL-1000 [78/168] Adding a manual key vpn tunnel

D-Link DFL-1000 [78/168] Adding a manual key vpn tunnel
DFL-1000 User Manual
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If you do not enable PFS, the VPN tunnel creates all phase 2 keys from a key created during phase 1.
This method of creating keys is less processor-intensive, but also less secure. If an unauthorized party
gains access to the key created during phase 1, all the phase 2 encryption keys can be compromised.
Adding a manual key VPN tunnel
Configure a manual key tunnel to create an IPSec VPN tunnel between the DFL-1000 NPG and a remote
IPSec VPN client or gateway that is also using manual key. A manual key VPN tunnel consists of a name
for the tunnel, the IP address of the VPN gateway or client at the opposite end of the tunnel, and the
encryption algorithm to use for the tunnel. Depending on the encryption algorithm, you must also specify
the encryption keys and optionally the authentication keys used by the tunnel. Because the keys are
created when you configure the tunnel, no negotiation is required for the VPN tunnel to start. However,
the VPN gateway or client that connects to this tunnel must use the same encryption algorithm and must
have the same encryption and authentication keys.
To create a manual key VPN tunnel:
Go to VPN > IPSEC > Manual Key .
Select New to add a new manual key VPN tunnel.
Configure the VPN tunnel.
VPN Tunnel
Name
Enter a name for the tunnel. The name can contain numbers (0-9), uppercase and lowercase
letters (A-Z, a-z), and the special characters - and _. Other special characters and spaces are not
allowed.
Local SPI
Security Parameter Index. Enter a hexadecimal number of up to eight digits (numbers (0-9) and/or
letters (a-f)). The hexadecimal number must be added to the Remote SPI at the opposite end of
the tunnel. The Local SPI value must be greater than bb8.
Remote SPI
Enter a hexadecimal number of up to eight digits. The hexadecimal number must be added to the
Local SPI at the opposite end of the tunnel. The Remote SPI value must be greater than bb8.
Remote Gateway
Enter the external IP address of the DFL-1000 NPG or other IPSec gateway at the opposite end
of the tunnel.
Replay Detection
Select Replay Detection to prevent IPSec replay attacks. See About replay detection
.
Encryption
Algorithm
Select an algorithm from the list. Make sure that you use the same algorithm at both ends of the
tunnel.
Required for encryption algorithms that include ESP-DES or ESP-3DES.
For all DES encryption algorithms, enter one hexadecimal number of up to 16 digits. Use the
same encryption key at both ends of the tunnel.
Encryption Key
For all 3DES encryption algorithms, enter three hexadecimal numbers of up to 16 digits each. Use
the same encryption key at both ends of the tunnel.
Required for encryption algorithms that include MD5 or SHA1 authentication.
For MD5 authentication, enter two hexadecimal numbers of 16 digits each. Use the same
authentication key at both ends of the tunnel.
Authentication
Key
For SHA1 authentication, enter two hexadecimal numbers, one of 16 digits and one of 20 digits.
Use the same authentication key at both ends of the tunnel.
Concentrator
Select a concentrator if you want the tunnel to be part of a hub and spoke VPN configuration. See
Adding a VPN concentrator
.
Select OK to save the manual key VPN tunnel.

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