Does DCS Support Cross-VPC Access?
Cross-VPC means the client and the instance are not in the same VPC.
The following assumes that public access is disabled for a DCS instance. Generally, VPCs are isolated from each other and an ECS cannot access a DCS instance that belongs to a different VPC from the ECS.
You can establish VPC peering connections to allow the ECS to access the DCS instance across VPCs.
When using VPC peering connections to access DCS instances across VPCs, adhere to the following rules:
- If CIDR Blocks 172.16.0.0/12 to 172.16.0.0/24 are used during DCS instance creation, the client cannot be in any of the following CIDR Blocks: 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24.
- If CIDR Blocks 192.168.0.0/16 to 192.168.0.0/24 are used during DCS instance creation, the client cannot be in any of the following CIDR Blocks: 172.31.1.0/24, 172.31.2.0/24, and 172.31.3.0/24.
- If CIDR Blocks 10.0.0.0/8 to 10.0.0.0/24 are used during DCS instance creation, the client cannot be in any of the following CIDR Blocks: 172.31.1.0/24, 172.31.2.0/24, and 172.31.3.0/24.
For more information on how to create and use VPC peering connections, see VPC Peering Connection.
Client and Network Connection FAQs
- Does DCS Support Public Access?
- Troubleshooting Redis Connection Failures
- Does DCS Support Cross-VPC Access?
- Will I Be Charged for the EIP Used for Public Access to a DCS Redis Instance?
- Why Is "(error) NOAUTH Authentication required" Displayed When I Access a DCS Redis Instance?
- What Should I Do If Access to DCS Fails After Server Disconnects?
- Why Do Requests Sometimes Time Out in Clients?
- What Should I Do If an Error Is Returned When I Use the Jedis Connection Pool?
- How Do I Access a DCS Redis Instance Through Redis Desktop Manager?
- What If "ERR Unsupported CONFIG subcommand" is Displayed in SpringCloud?
- What Can I Do If I Fail to Access a DCS Instance Using Its Domain Name Address?
- Can I Access DCS Instances in a Local Environment?
- What Should Be Noted When Using Redis for Pub/Sub?
- Why Is Public Access of My DCS Redis Instance Unintentionally Disabled?
- What Can I Do If Error "Cannot assign requested address" Is Returned When I Access Redis Using connect?
- Connection Pool Selection and Recommended Jedis Parameter Settings
- What Can I Do If a Lettuce 6.x Client Is Incompatible with My DCS Instance?
- Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance?
- Is the Read-only Address of a Master/Standby Instance Connected to the Master or Standby Node?
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