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SonicOS 5.8.1 Administrator Guide
Default Services Overview
The Default Services view displays the SonicWALL security appliance default services in the
Services table and Service Groups table. The Service Groups table displays clusters of
multiple default services as a single service object. You cannot delete or edit these predefined
services. The Services table displays the following attributes of the services:
• Name—The name of the service.
• Protocol—The protocol of the service.
• Port Start—The starting port number for the service.
• Port End—The ending port number for the service.
• Configure—Displays the unavailable Edit and Delete icon (default services
cannot be edited or deleted, you will need to add a
new service for the Edit and Delete icons
to become available).
Services that apply to common applications are grouped as Default
Service Groups. These
groups cannot be changed or deleted. Clicking on the + to the left of the Default Service Groups
entry, displays all the individual Default Services included in the group. For example, the DNS
(Name Service) entry has two services labelled DNS (Name Service) TCP for port 53 and DNS
(Name Service) UDP for port 53. These multiple entries with the same name are grouped
together, and are treated as a single service. Default Services Groups cannot be edited or
deleted.
Custom Services Configuration Task List
The following list provides configuration tasks for Custom Services:
• Adding Custom Services
• Editing Custom Services
• Deleting Custom Services
• Adding Custom Services Groups
• Editing Custom Services Groups
• Deleting Custom Services Groups
Supported Protocols
The following IP protocols are available for custom services:
• ICMP (1)—(Internet Control Message Protocol) A TCP/IP protocol used to send error and
control messages.
• IGMP (2)—(Internet Group Management Protocol) The protocol that governs the
management of multicast groups in a TCP/IP network.
• TCP (6)—(Transmission Control Protocol) The TCP part of TCP/IP. TCP is a transport
protocol in TCP/IP. TCP ensures that a message is sent accurately and in its entirety.
• UDP (17)—(User Datagram Protocol) A protocol within the TCP/IP protocol suite that is
used in place of TCP when a reliable delivery is not required.
• GRE (47)—(Generic Routing Encapsulation) A tunneling protocol used to encapsulate a
wide variety of protocol packet types inside IP tunnels, creating a virtual point-to-point link
to firewalls or routing devices over an IP Internetwork.