Configure Watchguard Firebox T70 for 8x8 service
Watchguard Firebox T70. Tested version 12.3.B581846
Add 8x8 servers
Go to Firewall and then to Aliases in the sub menu.
When creating new Aliases fill in Name as 8x8 and Description as 8x8 Servers.
Click Add under Alias Members.
As Member type select Network IPv4
Add all 8x8 subnets listed in the Virtual Office Technical Requirements
After all 8x8 servers have been added, click Save.
Create Policy for 8x8
Go to Firewall then to Firewall Policies and click on Add.
In the Packet Filter drop down choose Any, then click Add Policy.
In the From box click Add and select Any Trusted.
In the To box click Add and select 8x8.
Check the box next to Specify custom idle timeout and set to the timeout to 300 seconds. This helps to prevent dropped calls.
Go to the Advanced tab.
Select the options below to enable the following in the NAT section:
1-to-1 NAT (Use Network NAT Settings)
Select Use Network NAT Settings
Click the checkbox next to Override Per-Interface Settings.
Set the following values for QoS:
Marking Type: DSCP
Marking Method: Preserve
Prioritize Traffic Based on: Custom Value
Value: 7 (Highest)