Atlantis Land 111U ユーザーズマニュアル

ページ / 98
 
 
75 
Assigned Numbers Authority), and these are referred to as “well-known ports”. Servers 
follow the well-known port assignments so clients can locate them. 
If you wish to run a server on your network that can be accessed from the WAN (i.e. 
from other machines on the Internet that are outside your local network), or any 
application that can accept incoming connections (e.g. Peer-to-peer/P2P software such 
as instant messaging applications and P2P file-sharing applications) and are using NAT 
(Network Address Translation), then you will usually need to configure your router to 
forward these incoming connection attempts using specific ports to the PC on your 
network running the application. You will also need to use port forwarding if you want 
to host an online game server. 
The reason for this is that when using NAT, your publicly accessible IP address will be 
used by and point to your router, which then needs to deliver all traffic to the private 
IP addresses used by your PCs. Please see the WAN configuration section of this 
manual for more information on NAT. 
The device can be configured as a virtual server so that remote users accessing 
services such as Web or FTP services via the public (WAN) IP address can be 
automatically redirected to local servers in the LAN network. Depending on the 
requested service (TCP/UDP port number), the device redirects the external service 
request to the appropriate server within the LAN network. 
 
Field 
Meaning
Rule Index 
Choose the rule number
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 
10.4 IP Address Mapping 
Field 
Meaning
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