P-660R-Tx v2 Series Support Notes
The most often used port numbers are shown in the following table. Please
refer RFC 1700 for further information about port numbers.
Service
Port Number
FTP 21
Telnet 23
SMTP 25
DNS (Domain Name Server)
53
www-http (Web)
80
PPTP (Point-to-Point Tunneling
Protocol)
1723
•
Examples
•
Internet Access Only
•
Internet Access with an Internal Server
•
Using Multiple Global IP addresses for clients and servers
•
Support Non NAT Friendly Applications
(1) Internet Access Only
In our Internet Access example, we only need one rule where all our ILAs map
to one IGA assigned by the ISP. You can just use the default
SUA NAT
, or you
could select
Full Feature NAT
and select an Address Mapping Set with a
Many-to-One
Rule. See the following figure.
(2) Internet Access with an Internal Server
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