The following table shows the directions in which data passes through a firewall.

Table B-2 Directions in which data passes through a firewall

Programs requiring setup	Port number/protocol	Service name	Direction in which data passes through a firewall
JP1/Software Distribution Manager, JP1/Software Distribution Client	30000/tcp	netmdm	From JP1/Software Distribution Manager (lower manager) to JP1/Software Distribution Manager (higher manager) From JP1/Software Distribution Client (relay system) to JP1/Software Distribution Manager From JP1/Software Distribution Client (client) to JP1/Software Distribution Manager
JP1/Software Distribution Client	30001/tcp	netmdmw	From JP1/Software Distribution Client (lower relay system) to JP1/Software Distribution Client (higher relay system) From JP1/Software Distribution Client (client) to JP1/Software Distribution Client (relay system)
JP1/Software Distribution Manager, JP1/Software Distribution Client	30002/tcp	netmdmclt	From JP1/Software Distribution Manager (higher manager) to JP1/Software Distribution Manager (lower manager) From JP1/Software Distribution Manager to JP1/Software Distribution Client (relay system) From JP1/Software Distribution Manager to JP1/Software Distribution Client (client) From JP1/Software Distribution Client (higher relay system) to JP1/Software Distribution Client (lower relay system) From JP1/Software Distribution Client (relay system) to JP1/Software Distribution Client (client)
JP1/Software Distribution Manager, JP1/Software Distribution Client	30002/udp	netmdmclt	From JP1/Software Distribution Manager (higher manager) to JP1/Software Distribution Manager (lower manager) From JP1/Software Distribution Manager to JP1/Software Distribution Client (relay system) From JP1/Software Distribution Manager to JP1/Software Distribution Client (client) From JP1/Software Distribution Client (higher relay system) to JP1/Software Distribution Client (lower relay system) From JP1/Software Distribution Client (relay system) to JP1/Software Distribution Client (client)
JP1/Software Distribution Manager (OpenView Linkage)	20049/tcp	None	Between a PC containing HP NNM and OpenView Linkage and a JP1/Software Distribution NNM gateway server (in both directions)
JP1/Software Distribution Manager, JP1/Software Distribution Client	22296/udp	netmdmipmclt	From JP1/Software Distribution Manager to JP1/Software Distribution Client (client) From JP1/Software Distribution Client (relay system) to JP1/Software Distribution Client (client)
JP1/Software Distribution Manager, JP1/Software Distribution Client	22294/udp	netmdmipm	From JP1/Software Distribution Client (client) to JP1/Software Distribution Manager From JP1/Software Distribution Client (client) to JP1/Software Distribution Client (relay system)

Note

22295/tcp (netmdmgw) is the port used for communication between a relay manager or relay system and HTTP Gateway when the relay manager or relay system and HTTP Gateway are installed on the same PC.