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SonicOS Enhanced 4.0 Administrator Guide
Configuring Bandwidth on the WAN Interface
BWM configurations begin by enabling BWM on the relevant WAN interface, and specifying the
interface’s available bandwidth in Kbps. This is performed from the Network > Interfaces page
by selecting the Configure icon for the WAN interface, and navigating to the Advanced tab:
Egress and Ingress BWM can be enabled jointly or separately on WAN interfaces. Different
bandwidth values may be entered for outbound and inbound bandwidth to support asymmetric
links. Link rates up to 100,000 Kbps (100Mbit) may be declared on Fast Ethernet interface,
while Gigabit Ethernet interfaces will support link rates up to 1,000,000 (Gigabit). The
bandwidth specified should reflect the actual bandwidth available for the link. Oversubscribing
the link (i.e. declaring a value greater than the available bandwidth) is not recommended.
Once one or both BWM settings are enabled on the WAN interface and the available bandwidth
has been declared, a Bandwidth tab will appear on Access Rules. See the following
“
Configuring VoIP Access Rules” section for more information.
To configure Bandwidth Management on the SonicWALL security appliance:
Step 1 Select Network > Interfaces.
Step 2 Click the Edit icon in the Configure column in the WAN (X1) line of the Interfaces table. The
Edit Interface window is displayed.
Step 3 Click the Advanced tab.
Step 4 Check Enable Egress (Outbound) Bandwidth Management and enter the total available WAN
bandwidth in the Available Interface Egress Bandwidth Management field.
Step 5 Check Enable Ingress (Inbound) Bandwidth Management and enter the total available WAN
bandwidth in the Available Interface Ingress Bandwidth Management field.
Step 6 Click OK.
Configuring VoIP Access Rules
By default, the SonicWALL security appliance’s stateful packet inspection allows all
communication from the LAN to the Internet and blocks all traffic to the LAN from the Internet.
Additional network access rules can be defined to extend or override the default access rules.