Connecting VPC1 and VPC-NAT to an Enterprise Router

Step 1: Add a VPC Connection

For details, see Adding VPC Attachments to an Enterprise Router.

Two connections need to be added. Set their Attached Resource to VPC1 and VPC-NAT, respectively.

Step 2: Create Two Route Tables

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. In the service list, click Enterprise Router under Networking. Click Manage Route Table.
4. Create an association route table and a propagation route table, used for connecting to a protected VPC and a firewall, respectively.

   Click the Route Tables tab. Click Create Route Table. For more information, see Table 1.

   Table 1 Route table parameters

   Parameter	Description
   Name	Route table name. It must meet the following requirements: Must contain 1 to 64 characters. Can contain letters, digits, underscores (_), hyphens (-), and periods (.).
   Description	Route table description
   Tag	During the route table creation, you can tag the route table resources. Tags identify cloud resources for purposes of easy categorization and quick search. For details about tags, see Tag Overview.

   

   Create two route tables, to be used as an association route table and a propagation route table, respectively.

Step 3: Set an Association Route Table

1. In the service list, click Enterprise Router under Networking. Click Manage Route Table.
2. Create an association between VPC1 and VPC-NAT. On the route table configuration page, click the Associations tab and click Create Association. For more information, see Table 2.
   Figure 1 Creating an association
   

   Table 2 Association parameters

   Parameter	Description
   Attachment Type	Select VPC.
   Attachment	Select the VPC attachment from the Attachment drop-down list.

   

   Two associations need to be added. Set their Attachment to VPC1 and VPC-NAT attachments, respectively.

3. Add a static route to the firewall. Click the Routes tab and click Create Route. For more information, see Table 3.
   Figure 2 Creating a route
   

   Table 3 Route parameters

   Parameter	Description
   Destination	Set it to 0.0.0.0/0.
   Blackhole Route	You are advised to disable this function. If it is enabled, the packets from a route that matches the destination address of the blackhole route will be discarded.
   Attachment Type	Set Attachment Type to CFW instance.
   Next Hop	Select the automatically generated firewall attachment cfw-er-auto-attach.

Step 4: Set a Propagation Route Table

1. In the service list, click Enterprise Router under Networking. Click Manage Route Table.
2. Configure associations. On the route table configuration page, select the propagation table, click the Associations tab, and click Create Association. For more information, see Table 4.
   Figure 3 Creating an association
   

   Table 4 Association parameters

   Parameter	Description
   Attachment Type	Set Attachment Type to CFW instance.
   Attachment	Select the automatically generated firewall attachment cfw-er-auto-attach.

3. Create a propagation for VPC1. On the route table setting page, click the Propagations tab and click Create Propagation. For more information, see Table 5.
   Figure 4 Creating a propagation
   

   Table 5 Propagation parameters

   Parameter	Description
   Attachment Type	Select VPC.
   Attachment	Select the VPC1 attachment from the Attachment drop-down list.

4. Add a static route to VPC-NAT. Click the Routes tab and click Create Route. For more information, see Table 6.

   Table 6 Route parameters

   Parameter	Description
   Destination	Set it to 0.0.0.0/0.
   Blackhole Route	You are advised to disable this function. If it is enabled, the packets from a route that matches the destination address of the blackhole route will be discarded.
   Attachment Type	Select VPC.
   Next Hop	Select the VPC-NAT attachment from the drop-down list.