User guide

11N Wireless Broadband Router User Guide
58
modify the default MTU value (1492). Please open the WAN Setting” and modify the
MTU value with the recommended value as 1450 or 1400.
5.How to share my computer’s resource with other users in Internet
If you want Internet users to access the internal server via the router such as: e-mail
server, Web, FTP. You can configure the Virtual Server”.
Step 1: create your internal server, make sure the LAN users can access these servers
and know related service port. For example, Web server’s port is 80; FTP is 21; SMTP is
25 and POP3 is 110.
Step 2: In the router’s web click “Virtual Server” and select “Port Range Forwarding”.
Step 3: Input the service port provided by the router (i.e. the external port) for mapping
the internal and external network, for example, 80-80.
Step 4: input the internal Web service port, for example, 80-80.
Step 5: Input the internal servers IP address. For example, if your Web server’s IP
address is 192.168.0.10, please input it.
Step 6: select the communication protocol used by your internal host: TCP, UDP, Both.
Step 7: click “Okto activate the settings.
The following table lists some well-known applications and their respective service ports:
Protocol
Service Port
TCP
80
TCP
21
TCP
23
TCP
15031720
TCP/UDP
File Send:6891-6900(TCP)
Voice:18636901(TCP)
Voice:18635190(UDP)
TCP
1723
TCP
22555
TCP
25
TCP
110