2N 4G wireless router 2N SpeedRoute - User manual, 1898 v1.02 - Manual (Page 70)

Table of Programmable Parameters 3.2
70
Notification limit
A notification SMS is sent when the set value is reached. The PINGs must come in
a sequence to be considered.
Erase statistics
Set the PING rate statistics deleting command.
Min / Avg / Max time
The counter showing the response returning time from the server is displayed.
Count of errors / Total count
The counter showing all PINGs and errors is displayed. The statistic data are
floating.
GRE
Here set the VPN tunnel between two 2N ® SpeedRoute units, or between one 2N ®
SpeedRoute unit and a GRE-supporting device.
The principle is that you set a subnet and a public IP address on one device and then
the same on the other, thus creating an exclusive VPN tunnel between these two
devices.
Enabled
Enable/disable the GRE tunnelling function.
Network
Set the opposite subnet IP address and mask in the CIDR format, e.g.
192.168.24.0/21.
Endpoint
Set the public IP address of the opponent.
Warning
n Do not use the GRE tunnel together with the WiFi HotSpot function.
IPsec
IPsec is a function that enables two devices to communicate in a secure manner,
through encryption. ‘Secure’ means not only to prevent anyone from seeing the
content of your packets but also identify any intruder or violator. IPsec is capable of
protecting you reliably in this respect. IPsec has two modes – the Main mode and
Quick mode. The Internet Key Exchange (IKE) security protocol works in the Main
mode, verifying the two sides of the encrypted connection and establishing the initial
secure communication. No data are transmitted in the main mode. 2N® SpeedRoute
uses the ISAKMP for this phase. The Quick mode is used for data transmission, which
is the essence of IPsec. There is also a simplified Aggressive mode, a combination of
the Main and Quick modes with a slightly limited security level used for connection of