3.4.3.3. Virtual Server Mappings
Fig. 36. Virtual server mappings.
The WIASA enables you to expose internal servers on the intranet through NAT to the Internet for
public use. The exposed internal servers are called
virtual servers
because from perspective of hosts
on the Internet, these servers are invisible in terms of TCP/IP.
To expose “preset” internal servers:
1. Select the corresponding
Enabled
check boxes for the kinds of servers (FTP, IMAP4, SMTP,
POP3, TELNET, and HTTP) you want to expose.
2.
Specify the private IP addresses of the internal servers.
To expose other internal servers:
1. Specify
the
Service Name
,
Private IP Address
,
Port Number
, and whether the service is
TCP-based
or
UDP-based
for a non-preset internal server you want to expose.
2.
Select the corresponding
Enabled
check box for the internal server.
3.
Repeat Steps 1 to 2 for other non-preset internal servers.
34
