USER MANUAL
PrestoAdvancedAD101_AD301_UG_000_UK
Descriptions and non-contractual illustrations in this document are given as an indication only.
M2M Design reserves the right to make any modification
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Add
Click
Add
to insert (add) new item in table to the PRESTO Advanced Router.
Remove
Click
Remove
to delete selected item from table.
Reload
Click
Reload
to discard any changes and reload previous settings.
Save
Click
Save
to save your changes back to the PRESTO Advanced Router.
Table 9 – GRE parameters
Figure 13 – PRESTO Advanced tunnel parameters configuration page
GRE Keepalive
GRE tunnels can use periodic status messages, known as keepalives, to verify the integrity of the
tunnel from end to end. By default, GRE tunnel keepalives are disabled. Use the keepalive check box to
enable this feature. Keepalives do not have to be configured on both ends of the tunnel in order to work; a
tunnel is not aware of incoming keepalive packets. You should define the time interval (in seconds) between
transmitted keepalive packets. Enter a number from 1 to 60 seconds, and the number of times to retry after
failed keepalives before determining that the tunnel endpoint is down. Enter a number from 1 to 10 times.
