1818 A network security issue has occured in the node.

Explanation

This error can occur if the security rules that are associated with a cloud node are changed. A standard group of rules is defined in the cloud and attached to the cloud node when the node is deployed. If these security rules are changed, some operations fail as network is unreachable.

The following security group settings for inbound traffic are configured during the installation from the AWS marketplace:
Table 1. Default security group for inbound traffic
Type Protocol Port Range Use
SSH TCP 22 SSH traffic to a node instance
Customer TCP Rule UDP 21451-21452 Node discovery traffic
Customer TCP Rule TCP 21450 Node-to-node communication traffic
Customer TCP Rule TCP 3260 iSCSI target discovery, login, and IP replication traffic
Customer TCP Rule TCP 3265 IP replication traffic
Customer TCP Rule TCP 8443 Redirects for port 443
HTTPS TCP 443 Secure HTTP (HTTPS) inbound traffic
Customer TCP Rule TCP 1260 IP quorum traffic
IP Security (IPsec) traffic UDP 500 or 4500 Secured IP partnership traffic
Customer TCP Rule TCP 7443 RESTFUL API

User response

Contact the cloud services administrator and ensure that the system IP address, node IP addresses, and storage port IP addresses are assigned to the correct IBM Storage Virtualize for Public Cloud software nodes and that all security rules are set correctly on the cloud node.