
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.