Step 1: Create a Firewall (VPC Mode)
A VPC border firewall can collect statistics on the traffic between VPCs, helping you detect abnormal traffic. This section describes how to create a VPC border firewall.
Constraints
Only the professional edition supports VPC border firewalls.
Procedure
- Log in to the management console.
- Click
in the upper left corner of the management console and select a region or project.
- In the navigation pane, click
and choose . The Dashboard page will be displayed, as shown in Figure 1.
- (Optional) If the current account has only one firewall instance, the firewall details page is displayed. If there are multiple firewall instances, click View in the Operation column to go to the details page.
- In the navigation pane, choose Assets > Inter-VPC Border Firewalls.
- Click Create Firewall.
- Configure a CIDR block. An inspection VPC will be automatically created by default.
Figure 2 Network planning
Pay attention to the following restrictions during network planning:
- After a firewall is created, its CIDR block cannot be modified.
- This CIDR block cannot overlap with the private CIDR block to be protected, or routing conflicts and protection failures may occur.
- The CIDR block 10.6.0.0/16-10.7.0.0/16 is reserved for CFW and cannot be specified.
- Click OK.
Related Operations
Unsubscription: To unsubscribe from a VPC border firewall, you must unsubscribe from the CFW instance associated with it.
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