Draytek Vigor2960 Series User Manual page 271

5. After filling the required information for Advanced, click the GRE tab to open the
following page.
Available parameters are listed as follows:
Item
Enable GRE
Function
Local GRE IP
Remote GRE IP
Auto Generate
GRE Key
GRE In Key
GRE Out Key
Apply
Cancel
Vigor2960 Series User's Guide
Description
Click Enable to enable such function.
The virtual IP address of the router, specified for this tunnel.
The virtual IP address of the remote client, specified for this
tunnel.
Click Enable to enable such function.
If you click Disable, you have to type GRE In Key and
GRE Out Key respectively.
Type the hexadecimal number as GRE In Key. This value is
used for the router to authenticate the source of the packet.
The length is 4 bytes
Type the hexadecimal number as GRE Out Key. This value
is used for the remote client to authenticate the source of the
packet. The length is 4 bytes.
Click it to save the configuration.
Click it to exit the page without saving the configuration.
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