Wireless ADSL Router
HRDSL521W
42
Protocol:
Choose the Protocol Type, ALL, TCP or UDP.
Start Port Number:
Enter a port number in this field.
End Port Number:
Enter a port number in this field.
Local
IP Address:
Enter your server IP address in this field.
IP Address Mapping
Rule Index:
Choose the rule number.
Rule Type:
One-to-one: This is the mode maps one local IP address to one global IP address. Note
that port numbers do not change for the One-to-one NAT mapping type.
Many-to-One: This is the mode maps multiple local IP addresses to one global IP address.
This is equivalent to Many to One (i.e., PAT, port address translation).
Many-to-Many Overload: This is mode maps multiple local IP addresses to shared global IP
addresses.
Many-to-Many No Overload: This is the mode maps each local IP address to unique global
IP addresses.
Server: This type allows you to specify inside servers of different services behind the NAT
to be accessible to the outside world.
Local Start IP:
This is the starting Inside Local IP Address (ILA). Local IP addresses are
N/A
for Server
port mapping.
Local End IP:
This is the end Inside Local IP Address (ILA). If your rule is for all local IP
addresses, then enter 0.0.0.0 as the Local Start IP address and 255.255.255.255 as the
Local End IP
address. This field is N/A
for One-to-one
and Server mapping types.
Public Start IP:
This is the starting Inside Public IP Address. Enter 0.0.0.0 here if you
have a dynamic IP address from your ISP.
Public End IP:
This is the ending Inside Public IP Address. This field is N/A for
One-to-one, Many-to-One
and Server mapping types.
WARNING
Using port forwarding does have security implications, as outside users will be able to
connect to PCs on your network. For this reason you are advised to use specific Virtual
Server entries just for the ports your application requires, instead of using DMZ. As doing
so will result in all connections from the WAN attempt to access to your public IP of the
DMZ PC specified.
