
How the PortMaster Works 2-3
PortMaster Initialization
PortMaster InitializationOnce the PortMaster has successfully booted, it does the following:
1. Ethernet interfaces are started.
2. Modem initialization strings are sent to asynchronous ports that have modem table 
entries defined.
3. Network hardwired ports are initiated.
4. Continuous dial-out connections are initiated. 
5. On-demand dial-out connections for locations that have routing enabled are 
initiated, and routing information is exchanged between the PortMaster and those 
locations.
6. Broadcasting and listening for routing packets are initiated on interfaces configur ed 
for routing.
7. TCP connections to PortMaster hosts are established.
8. TCP connections are established to ports configured as host devices by means of th e 
PortMaster device service. 
9. The PortMaster listens for TCP connections  to any ports configured as network 
devices.
10. The PortMaster listens for activity on TCP and UDP po rts, such as for administrative 
Telnet sessions on TCP port 23, PMconsole connections on TCP port 1643, and 
SNMP requests on UDP port 161.
11. Syslog starts, if configured.
12. RADIUS starts, if configured.
13. ChoiceNet starts, if configured.
The PortMaster is now ready to begin providing service.