VPC Border Firewall Overview
The VPC border firewall supports access control for communication traffic between two VPCs, visualizing and protecting internal service access.
Constraints
- Only the professional edition supports VPC border firewalls.
- To use public network CIDR blocks other than 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, and 100.64.0.0/10 as private network CIDR blocks, submit a service ticket, or CFW may fail to forward traffic between your VPCs.
Configuration Process
![](https://support.huaweicloud.com/eu/usermanual-cfw/en-us_image_0000001690646797.png)
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