You have a static VPN connecting your data center and your VPC.
You currently have 50 routes added to your route table.
You want to add more, which of the following you would do to achieve this.
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A. B. C. D.Answer - A and B.
A dynamic routing table can support 100 routes.
A static can only support 50 per IPv4 and 50 per IPv6.
For more information on VPC and VPN , please refer to the below link:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.htmlWhen you have a static VPN connection between your data center and VPC, you need to manually add the routes to your VPC's route table. The route table is used to direct the traffic to the correct destination. When you have many routes, it can be difficult to manage them, and you may reach the limit of the number of routes you can add to a single route table.
To address this, you can consider the following options:
A. Convert your VPN to a dynamic VPN: With a dynamic VPN, the VPN gateway can automatically exchange routes with your on-premises VPN device using a routing protocol such as Border Gateway Protocol (BGP). This means that you do not need to manually add routes to your VPC's route table. However, you need to make sure that your on-premises VPN device supports BGP, and you need to configure it properly.
B. Consider using BGP: If you cannot or do not want to convert your VPN to a dynamic VPN, you can still use BGP to exchange routes between your VPN gateway and on-premises VPN device. This can simplify the management of routes as you don't have to manually add them to the VPC's route table. Again, you need to make sure that your on-premises VPN device supports BGP and that you configure it properly.
C. Increase the number of Route tables: AWS allows you to create up to 200 route tables per VPC. If you have reached the limit of the number of routes you can add to a single route table, you can create additional route tables and divide your routes among them. This can help you organize your routes and make it easier to manage them. However, keep in mind that each subnet can only be associated with one route table at a time.
D. Increase the number of VPCs: If you have reached the limit of the number of routes you can add to a single VPC's route table, you can create additional VPCs and use VPC peering or a VPN connection to connect them to your on-premises network. Each VPC can have its own route table, allowing you to add more routes.
In summary, if you want to add more routes to your VPC's route table, you can consider converting your VPN to a dynamic VPN, using BGP, increasing the number of route tables, or increasing the number of VPCs. The best option depends on your specific requirements and constraints.