Port Range
Set the filter Port range
Src Address
Set source address. It can be single IP address, network
address, complete address 0.0.0.0, or network address
similar to *.*.*.0
Des Address
Set the destination address. It can be IP address, network
address, complete address 0.0.0.0, or network address
similar to *.*.*.*
Src Mask
Set the source address’ mask. For example,
255.255.255.255 means just point to one host;
255.255.255.0 means point to a network which network ID
is C type.
Dest Mask
Set the destination address’ mask. For example,
255.255.255.255 means just point to one host;
255.255.255.0 means point to a network which network ID
is C type.
Click the
Add
button
if you want to add a new output rule.
Then enable out access, and click the Apply button.
So when devices execute to ping 192.168.1.118, system will deny the request to
send icmp request to 192.168.1.118 for the out access rule. But if devices ping
other devices which network ID is 192.168.1.0, it will be normal.
Click the
Delete
button to delete the selected rule.
Click the
Add
button
if you want to add a new output rule.
Then enable out access, and click the Apply button.
So when devices execute to ping 192.168.1.118, system will deny the request to
send icmp request to 192.168.1.118 for the out access rule. But if devices ping
other devices which network ID is 192.168.1.0, it will be normal.
Click the
Delete
button to delete the selected rule.
8.4.1.3
NAT
NAT is abbreviated from Net Address Translation; it’s a protocol responsible for IP
address translation. In other word, it is responsible for transforming IP and port of
private network to public, also is the IP address mapping which we usually say.
