Netgear FVS318Gv2 – ProSAFE VPN Firewall Series Reference Manual

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When you create inbound and outbound firewall rules, you use firewall objects such as 
services, QoS profiles, bandwidth profiles, and schedules to narrow down the firewall rules:

Services. A service narrows down the firewall rule to an application and a port number. 
For information about adding services, see 

Bandwidth profiles. A bandwidth profile allocates and limits traffic bandwidth for the 
LAN users to which an IPv4 firewall rule is applied. For information about creating 
bandwidth profiles, see 

QoS profiles. A Quality of Service (QoS) profile defines the relative priority of an IP 
packet for traffic that matches the firewall rule. For information about QoS profiles, see 

A schedule narrows down the period during which a firewall rule is applied. For information 
about specifying schedules, see 

This section contains the following topics:

Services are functions performed by server computers at the request of client computers. 
You can configure up to 124 custom services.

For example, web servers serve web pages, time servers serve time and date information, 
and game hosts serve data about players’ moves. When a computer on the Internet sends a 
request for service to a server computer, the requested service is identified by a service or 
port number. This number appears as the destination port number in the transmitted IP 
packets. For example, a packet that is sent with destination port number 80 is an HTTP (web 
server) request.

The service numbers for many common protocols are defined by the Internet Engineering 
Task Force (IETF) and published in RFC 1700, 

Assigned Numbers. Service numbers for 

other applications are typically chosen from the range 1024 to 65535 by the authors of the 
application. However, on the VPN firewall you can select service numbers in the range from 1 
to 65535.

Although the VPN firewall already holds a list of many service port numbers, you are not 
limited to these choices. Use the Services screen to add additional services and applications