Services; Pre-Defined Services - D-Link DFL-500 User Manual

For example, if the virtual IP is for a web server the IP address must be a static IP address obtained from
your ISP for your web server and must not be the same as the external address of the DFL-500. However,
your ISP must route this address to the external interface of the DFL-500.
· In the Map to IP field, enter the actual IP address of the web server.
·
Select OK to save the Virtual IP.
·
Repeat these steps to add Virtual IPs as needed.
Adding a Virtual IP

Services

Use services to control the types of communication accepted or denied by the firewall. You can add any of the
pre-configured services listed in
custom services and add services to service groups.
This section describes:
·

Pre-defined services

·
Providing access to custom services
·
Grouping services
Pre-defined services
The DFL-500 pre-defined firewall services are listed in
services to any policy.
DFL-500 pre-defined services
Service
Description
name
ANY Match connections on any port.
DNS Domain name servers for looking up domain names.
FINGER Finger service.
FTP FTP service for transferring files.
GOPHER Gopher communication service.
HTTP HTTP service for connecting to web pages.
DFL-500 User Manual
DFL-500 pre-defined services to a policy. You can also create your own
DFL-500 pre-defined services. You can add these
Protocol
all
tcp
udp
tcp
tcp
tcp
tcp
Source Destination
Port port
1-65535 all
1-65535 53
1-65535 53
1-65535 79
1-65535 20-21
1-65535 70
1-65535 80
37