The ShCM node opens the following listening ports. Please refer to the tables below to configure your firewall rules appropriately.

Static ports

This table describes listening ports that will normally always be open at the specified port number.

Purpose Port Number Transport Layer Protocol Interface Notes

Allows Rhino exports

22000

TCP

global

Local TCP port for receiving audit syslogs from Rhino and logging to dedicated audit files

514

TCP

global

rsyslogd listens on both the IPv4 and IPv6 global addresses

ShCM service port

8088

TCP

internal

Localhost statistics port for linkerd

9990

TCP

localhost

NTP - local administration

123

UDP

localhost

ntpd listens on both the IPv4 and IPv6 localhost addresses

PostgreSQL connections from localhost

5432

TCP

localhost

PostgreSQL listens on both the IPv4 and IPv6 localhost addresses

Proxy port for Linkerd

4140

TCP

localhost

Receive and forward SNMP trap messages

162

UDP

localhost

SNMP Multiplexing protocol

199

TCP

localhost

Allow querying of system-level statistics using SNMP

161

UDP

management

Inbound and outbound SNMP requests for Rhino

16100

UDP

management

JMX - used by REM to manage Rhino

1202

TCP

management

NTP - time synchronisation with external server(s)

123

UDP

management

This port is only open to this node’s registered NTP server(s)

Port for serving version information to SIMPL VM over HTTP

3000

TCP

management

Rhino management client connections

1199

TCP

management

SSH connections

22

TCP

management

SSL - used by REM to manage Rhino

1203

TCP

management

Stats collection for SIMon

9100

TCP

management

Port ranges

This table describes listening ports which may be open at any port number within a range. Unless otherwise specified, a single port in a range will be open.

These port numbers are often in the ephemeral port range of 32768 to 60999.

Purpose Minimum Port Number Maximum Port Number Transport Layer Protocol Interface Notes

Outbound SNMP traps

32768

60999

udp

global

Rhino statistics gathering

17400

17699

tcp

global

Rhino intra-pool communication

22020

22029

tcp

internal

Rhino statistics gathering

17401

17699

tcp

management

Rhino node ID dependent ports

This table describes open listening ports whose port numbers depend on the VM’s Rhino node ID. The actual port number will be the base port number from the table plus the value of the Rhino node ID.

Purpose Base Port Number Interface Transport Layer Protocol Notes

Used by REM to pull Rhino logs

9373

tcp

global

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Rhino VoLTE TAS VMs Version 4.1