Enabling ICMP Security Group Rules¶
Scenario¶
If a workload uses UDP for both load balancing and health check, enable ICMP security group rules for the backend servers.
Procedure¶
Log in to the CCE console, choose Service List > Networking > Virtual Private Cloud, and choose Access Control > Security Groups in the navigation pane.
In the security group list, locate the security group of the cluster. Click the Inbound Rules tab page and then Add Rule. In the Add Inbound Rule dialog box, configure inbound parameters.
Cluster Type
ELB Type
Security Group
Protocol & Port
Allowed Source CIDR Block
CCE Standard
Shared
Node security group, which is named in the format of "{Cluster name}-cce-node-{Random ID}".
If a custom node security group is bound to the cluster, select the target security group.
All ICMP ports
100.125.0.0/16 for the shared load balancer
Dedicated
Node security group, which is named in the format of "{Cluster name}-cce-node-{Random ID}".
If a custom node security group is bound to the cluster, select the target security group.
All ICMP ports
Backend subnet of the load balancer
Click OK.