Edge-Core VPS3302, User Manual

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VPS3302
user manual
8 Use private IP (Behind NAT)
If the VES3302 in Public IP network also need to use VPS3302, the server port number behind
NAT need to enable.
Concerning about NAT, please refer to the documentation about NAT.
In the table below, the port number used in VPS3302 parking server is listed. If the packets for
VPS3302 parking server are filtered by the firewall, please open the ports number of firewall.
Packet type Port numbers
Call control UDP 2000
FTP TCP 21
Web management TCP 80
Telnet TCP 23
Normally every type of server uses the specific port number, e.g. WEB server uses the TCP port
80, and FTP server uses the TCP port 21. The configuration is to set mapping for the specific port
number to the internal private IP Address. Therefore IP sharing device will transfer the packet with
specific port number to the corresponding private IP Address. For example, if the private IP
Address 192.168.1.1 is used in the internal network, it should be mapped to a corresponding port
number (TCP port 80 of IP sharing devices <--> TCP port 80 of IP address 192.168.1.1). Hence,
any packets to TCP port 80 will be transferred to TCP port 80 of IP Address “192.168.1.1”. In this
bridge, UDP port 2000 is used for Call Control. It acts the same as a server. Only the port number
is different. So there should has a port mapping on the IP Sharing device. (UDP port 2000 of IP
sharing devices <--> UDP port 2000 of IP address 192.168.1.1)
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