Other Network Considerations
Issue 5 April 2010 29
Figure 2: Initialization and Address Resolution Diagram
1600 Series IP Telephone
Port: 68
Port: [1024 - 5000]
Operating System
–selected (a new port is
used for each file
requested)
Port: [1024 - 5000]
Operating System –
selected (a new port
is used for each file
requested)
Port: [1024 - 5000]
Operating System
–selected
Initialization and Address Resolution
DHCP Server
Port: 67
DHCP (TCP/IP)
HTTP Read Request (TCP/IP)
HTTPS Data, ACKs & Errors (TCP/IP)
DNS(UDP/IP)
HTTP Server
Port: 80
Port: Operating System
– selected (a new port is
used for each file)
HTTPS Server
Port:411
Port: Operating
System – selected (a
new port is used for
each file
HTTPS Read Request (TCP/IP)
HTTPS Data, ACKs & Errors (TCP/IP)
DNS Server
Port: 53