User guide

Vonage V-Portal User Guide
Port Forwarding is used when you want to provide public access to services running on your
private LAN (such as a web server, e-mail server or FTP server). When a firewall is enabled,
certain ports on a LAN may be blocked. Port forwarding allows incoming traffi c from the Internet
nd directs it to specific services on your LAN based on the configured IP address and port
quests from users are sent to your network via the Internet, and the V-
ortal will forward these requests to the appropriate port on the PC.
applications’
ocumentation. For your convenience, we have included a table of commonly used port numbers
below.
Service Protocol Port Number
a
number. In other words, re
P
The specific port forwarding rules you need to implement will be detailed in the
d
HTTP TCP 80
FTP TCP 21
TFTP UDP 69
SMTP Both 25
POP3 TCP 110
NNTP TCP 119
Telnet Both 23
IRC TCP 194
SNMP Both 161
Finger TCP 79
Gopher TCP 70
Whois TCP 43
Rtelnet TCP 107
LDAP Both 389
UUCP TCP 540
Setting up Port Forwarding
Caution: Incorrectly cha
increase the vulnerability of computers on your home network to hacker attacks. We recommend
that only users with advanced networking knowledge change these settings.
nging these settings may interrupt your Internet or voice service or
Port Setting screen will be
screen:
To setup Port forwarding:
Fro , click on the Advanced Setup tab. The
displayed. The Port Forwarding section is at the top of that
m the home page
View the Terms of Service by visiting the Vonage website at www.vonage.com/tos. Pay particular attention to
Section 11 which explains limitations on Warranty, Remedy and Liability.
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