AD7028 Cellular Router User Manual
Tel:+86 592-6195619 Fax:+86 592-6195620 E-mail:
Page 27 of 41
Web:
Add: NO.146-148, 2nd XingBei Road, JiMei District, XiaMen, China.
IKE aggressive mode allowed:
Negotiation mode adopt aggressive mode if tick; it is
main mode if non-tick.
Perfect Forward Secrecy:
Tick to enable PFS, non-tick to disable PFS.
Enable DPD Detection: E
nable or disable this function, tick means enable.
Time Interval:
Set time interval of connect detection (DPD).
Timeout:
Set the timeout of connect detection.
Action:
Set the action of connect detection.
3.5.4 GRE
GRE (Generic Routing Encapsulation, Generic Routing Encapsulation) protocol is a
network layer protocol (such as IP and IPX) data packets are encapsulated, so these
encapsulated data packets to another network layer protocol (IP)transmission. GRE
Tunnel (tunnel) technology, Layer Two Tunneling Protocol VPN (Virtual Private Network).
Name
：
GRE tunnel name.
Through
：
The GRE packet transmit interface.
Local Tunnel IP
：
The local tunnel ip address.
Local Netmask
：
Netmask of local network.
Peer Wan IP Addr
：
The remote WAN address.
Peer Tunnel IP
：
The remote tunnel ip address.
Peer Subnet
：
The remote gateway local subnet, eg: 192.168.1.0/24.
3.6 Security
3.6.1 Firewall
You can enable or disable the firewall, filter specific Internet data types, and prevent
anonymous Internet requests, ultimately enhance network security.
Firewall enhance network security and use SPI to check the packets into the network.To
use firewall protection, choose to enable otherwise disabled. Only enable the SPI firewall,
you can use other firewall functions: filtering proxy, block WAN requests, etc.
