Connecting VPC1 and VPC-NAT to an Enterprise Router

Connecting VPC1 and VPC-NAT to an Enterprise Router

1. Add VPC connections.
   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.

2. Create two route tables.
   1. In the upper left corner, click and choose Networking > Enterprise Router. Click Manage Route Table.
   2. 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.

3. Configure the association route table.
   1. 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.

      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.

   2. Add a static route to the firewall. Click the Routes tab and click Create Route. For more information, see Table 3.
      Figure 1 Creating a route
      

      Table 3 Route parameters

      Parameter	Description
      Destination	Set the destination address. If 0.0.0.0/0 is configured, all the traffic of the VPC is protected by CFW. If a CIDR block is configured, the traffic of the CIDR block is protected by CFW.
      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.
      Description	(Optional) Description of a route.

4. Configure the propagation route table.
   1. Create a propagation for VPC1. On the route table setting page, click the Propagations tab and click Create Propagation. For more information, see Table 4.
      Figure 2 Creating a propagation
      

      Table 4 Propagation parameters

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

   2. Add a static route to VPC-NAT. Click the Routes tab and click Create Route. For more information, see Table 5.

      Table 5 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.