BEC 6300VNL Manuel d'utilisateur télécharger pdf (Page 77)

Device Configuration /

Advanced Setup

BEC 6300VNL User Manual

The starting greater than zero (0) and the ending port must be the same or larger than the starting port.

Local IP Address: Enter your server IP address in this field.

Start / End Port Number (Local): Enter the start / end port number of the local application (service).

Examples of well-known and registered port numbers are shown below. For further information, please

see IANA’s website at http://www.iana.org/assignments/port-numbers

Well-known and Registered Ports

Port Number

Protocol

Description

TCP

FTP Control

TCP & UDP

SSH Remote Login Protocol

TCP

Telnet

TCP

SMTP (Simple Mail Transfer Protocol)

TCP & UDP

DNS (Domain Name Server)

UDP

TFTP (Trivial File Transfer Protocol)

TCP

World Wide Web HTTP

110

TCP

POP3 (Post Office Protocol Version 3)

443

TCP & UDP

HTTPS

1503

TCP

T.120

1720

TCP

H.323

7070

UDP

RealAudio

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.

If you have disabled the NAT option in the WAN-ISP section, the Virtual Server

function will hence be invalid.

If the DHCP server option is enabled, you have to be very careful in assigning

the IP addresses of the virtual servers in order to avoid conflicts. The easiest

way of configuring Virtual Servers is to manually assign static IP address to

each virtual server PC, with an address that does not fall into the range of IP

addresses that are to be issued by the DHCP server. You can configure the

virtual server IP address manually, but it must still be in the same subnet as the

router.

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BEC 6300VNL Manuel d'utilisateur Page 77

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