Advantech WISE-6610 Series, User Manual

Page: 50 / 100

WISE-6610 Series User Manual 39
Lifetime - (Rekey random value in range (from 0 to Rekey margin *
Rekey Fuzz/100))
The default exchange of keys is in the following time range:

Minimal time: 1h - (9m + 9m) = 42m

Maximal time: 1h - (9m + 0m) = 51m
We recommend that you maintain the default settings. When you set key exchange
times higher, the tunnel produces lower operating costs, but the setting also provides
less security. Conversely, when you reducing the time, the tunnel produces higher
operating costs, but provides for higher security.
The changes in settings will apply after clicking the Apply button.
Example: Tunnel Configuration in IPv4 Network
Figure 3.26 Topology of Configuration Example
tunnel configuration:
Examples of different options for configuration and authentication of tunnel can be
found in the application note Tunnel [6].
3.4.5 GRE
To open the GRE Tunnel Configuration page, click GRE in the Configuration section
of the main menu. The GRE tunnel function allows you to create an unencrypted
Configuration A B
Host IP Mode IPv4 IPv4
Remote IP Address 10.0.0.2 10.0.0.1
Tunnel IP Mode IPv4 IPv4
Remote Subnet 192.168.2.0 192.168.1.0
Remote Subnet Mask 255.255.255.0 255.255.255.0
Local Subnet 192.168.1.0 192.168.2.0
Local Subnet Mask 255.255.255.0 255.255.255.0
Authenticate mode pre-shared key pre-shared key
Pre-shared key test test
Note! GRE is an unencrypted protocol. GRE via IPv6 is not supported.