PowerFlex: How to configure a firewall for a standalone SDC

Summary: How to configure a firewall for a standalone SDC.

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Instructions

By design, SDC is a client. It does not listen on any port. It uses random outbound ports to connect to specific MDM or SDS ports. SDC installer does not modify any firewall (iptables) rules.

Below is an example: 

10.0.1.51 is a node with the Primary MDM and an SDS;
10.0.1.41-45 are standalone SDCs.
 

MDM1_SDS1:~ # netstat -apnt | grep "10\.0\.1\.51:6611" | grep "10\.0\.1\.4[1-5]" | sort -k4
tcp        0      0 10.0.1.51:6611          10.0.1.41:32086         ESTABLISHED 3734/mdm-2.0.7120.0
tcp        0      0 10.0.1.51:6611          10.0.1.42:52119         ESTABLISHED 3734/mdm-2.0.7120.0
tcp        0      0 10.0.1.51:6611          10.0.1.43:31740         ESTABLISHED 3734/mdm-2.0.7120.0
tcp        0      0 10.0.1.51:6611          10.0.1.44:35382         ESTABLISHED 3734/mdm-2.0.7120.0
tcp        0      0 10.0.1.51:6611          10.0.1.45:60354         ESTABLISHED 3734/mdm-2.0.7120.0

MDM1_SDS1:~ # netstat -apnt | grep "10\.0\.1\.51:7072" | grep "10\.0\.1\.4[1-5]" | sort -k4
tcp        0      0 10.0.1.51:7072          10.0.1.41:32093         ESTABLISHED 3733/sds-2.0.7120.0
tcp        0      0 10.0.1.51:7072          10.0.1.42:52123         ESTABLISHED 3733/sds-2.0.7120.0
tcp        0      0 10.0.1.51:7072          10.0.1.43:31745         ESTABLISHED 3733/sds-2.0.7120.0
tcp        0      0 10.0.1.51:7072          10.0.1.44:52829         ESTABLISHED 3733/sds-2.0.7120.0
tcp        0      0 10.0.1.51:7072          10.0.1.45:60365         ESTABLISHED 3733/sds-2.0.7120.0



SDCs all connect to MDM's 6611 port.
SDCs all connect to SDS's 7072 ports.
SDC's own ports that are used in the connection are random. 

Affected Products

PowerFlex rack, ScaleIO
Article Properties
Article Number: 000019407
Article Type: How To
Last Modified: 09 Sept 2025
Version:  4
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