Modifying a Private CIDR Block
To use public network CIDR blocks other than 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, or the 100.64.0.0/10 segment reserved for carrier-level NAT as private network CIDR blocks, modify the CIDR private network segment or submit a service ticket to expand your private IP CIDR blocks; otherwise, CFW may fail to forward traffic between your VPCs.
Modifying a Private CIDR Block
- Log in to the management console.
- Click
in the upper left corner of the management console. Select a region.
- In the navigation pane on the left, click
and choose . The Dashboard page will be displayed.
- (Optional) Switch to another firewall instance. Select a firewall from the drop-down list in the upper left corner of the page.
- In the navigation pane, choose Assets > Inter-VPC Border Firewalls.
- Click Edit Private IP Address Segment next to Custom Private IP Address Segment.
Related Operations
- For details about VPC border firewalls, see VPC Border Firewall Overview.
- For details about how to configure a VPC border firewall, see Enterprise Router Mode (New).
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