Network Access Rules Page 131
4. Select the IP protocol t yp e , TCP , UDP or ICMP, from the Protocol list.
5. Click Add. The new service appears in the list on the right side of the browser window.
Tip If multiple entries wi th the sa me name are cre ated, th ey are gr ouped t ogether a s a single servi ce
and can not function as expected.
Enable Logging
You can enable and disable logging of events in the SonicWALL Event Log. For example, if Linux
authentication messages are filling up your log, you can disable logging of Linux authentication.
1. Highlight the name of the desired service in the list.
2. Clear the Enable Logging check box.
3. Click Modify.
Delete a Service
To delete a service, highlight the name in the list, and click Delete Service. If multi ple e ntr ies wi th
the same name exist, delete all entries to remove the service.
Rules
The SonicWALL evaluates the source IP address, the destination IP address, and the service type
when determining whether to allow or deny traffic. Custom rules take precedence and override the
SonicWALL default rules.
By default, the SonicWALL blocks all traffic from the Internet to the LAN and allows all traffic from
the LAN to the Internet. Custom rules can be created to modify the default rules. For example, rules
can be created for t he following purposes:
• Allo w traffic from the Inter net to a mail server on t he LAN.
• Re strict users on the L AN from using a specif ied service, such as QuickTime.
• Allow specified IP addresses on the Internet to access a sensitive server on the L AN.
• Configure bandwidth management for individual services.