B. Directions of Traffic Through a Firewall

The table below describes the port numbers of the ports that are used by SSO programs and NNMi and the directions of traffic through the firewall.

Note that, as the port number of the communication source, a port number not being used by the source host is assigned.

Table B‒1: Port numbers to be used and the directions of traffic through the firewall
Function	Port number^#1	Protocol	Direction of the firewall traffic
Resource collection	20086	TCP	SSO `<-` window^#2 SSO `<-` command^#2
Resource collection	161^#3	UDP	SSO `->` SNMP agent
Process and service monitoring	20147	TCP	SSO `<-` window^#2 SSO `<-` command^#2
	161^#3	UDP	SSO `->` SNMP agent
	162	UDP	NNMi `<-` APM^#4 or SSO `<-` APM^#5
Report creation and browsing	22297 20393	TCP	SSO `<-` Report Configuration window^#2 SSO `<-` Report Browser window^#6
Report creation and browsing using an SSL connection	22297 20397	TCP	SSO `<-` Report Configuration window^#2 SSO `<-` Report Browser window^#6
SSO console	20393	TCP	SSO `<-` Web browser^#6
SSO console using an SSL connection	20397	TCP	SSO `<-` Web browser^#6
TCP notification of APM event	20264	TCP	SSO `<-` APM
TCP health check	20307	TCP	SSO `->` APM
Event transmission	80^#7	TCP	SSO `->` NNMi
Event transmission	162	UDP	SSO `->` SNMP manager^#8

Legend:

->: The program on the left starts communication (connection) with the program on the right.

<-: The program on the right starts communication (connection) with the program on the left.

#1

Default value.

#2

This direction of traffic through the firewall applies to the case in which a connection is established from the local host to SSO on a remote host through window operations or by executing a command. This direction of traffic also applies to the case in which a connection is established from the SSO console to SSO.

#3

If the SNMP agent is the ESA for Red Hat Enterprise Linux, the default port number is 22161.

#4

This direction of traffic through the firewall applies to the case in which an APM event is reported as an SNMP trap in a basic system configuration.

#5

This direction of traffic through the firewall applies to the case in which an APM event is reported as an SNMP trap in a distributed system configuration.

#6

This direction of traffic through the firewall applies to the case in which a Web browser is used to access SSO.

#7

This port number is that of the NNM Web server port of NNMi defined in the NNM information definition file.

#8

This direction of traffic through the firewall applies to the case in which an event is reported to the SNMP manager (for example, NNM) on a remote host according to definitions in the event destination definition file.

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