Dahua DH-WM4700-O - Security; Firewall

User’s Manual
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Table 3-26 Description of GRE tunnel parameters
Parameter
Description
Number
Selectable tunnels. Up to 12 GRE tunnels can be set.
Status
Select Enable to enable the current GRE tunnel; select Disable to
disable the current GRE tunnel.
Name
GRE tunnel name, the length can up to 30 charaters.
Through
The GRE transceiver interface: PPP, LAN and WAN (Static IP).
Peer Wan IP Addr
Enter the WAN IP address of the peer GRE.
Peer Subnet
Enter the subnet IP address of the peer GRE. For example,
192.168.1.0/24.
Peer Tunnel IP
Enter the IP address of the peer GRE tunnel.
Local Tunnel IP
Enter the IP address of the local GRE tunnel.
Local Netmask
Enter the local subnet mask.
Keepalive
Enable or disable GRE keepalive.
Retry times
Set the retry times of GRE keepalive.
Interval
Set the sending interval of GRE keepalive packet.
Fail Action
Select the keepalive failure action.
(Optional) Click View GRE Tunnels to view the tunnel details. Step 4
Click Save to save the configuration. Step 5
Click Apply Settings to apply the configuration. Step 6
(Optional) Click Cancel Changes to cancel the configuration. Step 7
Security 3.7
3.7.1 Firewall
You can enhance network security by filtering specific Internet data types and blocking
anonymous Internet requests.
Log in to the web interface of the Router. Step 1
In the left navigation menu, select Security > Firewall. Step 2
In Security section, enable SPI Firewall. Step 3
 Firewall enhances network security and checks the packets entering the network
by using SPI. To use firewall protection, select Enable, otherwise select Disable.
 Additional Filters, Block WAN Requests and Impede WAN DoS/Bruteforce are
valid only when SPI firewall is enabled.