Startup and functions
7190_en_02
PHOENIX CONTACT
3-17
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Port Priority: 128
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Path Cost: 100
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Aging Time: 300 seconds
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Max Age: 20 seconds
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Switch Priority: 32768
For information about assigning IP addresses manually, please refer to the next section.
3.5.2.1
Assigning IP parameters
Options for assigning IP parameters:
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Static configuration via WBM, SNMP
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Assignment via DHCP
Valid IP parameters
IP parameters comprise the following three elements: "IP address", "subnet mask", and
"default gateway/router".
Valid IP addresses are:
000.000.000.001 to 126.255.255.255
128.000.000.000 to 223.255.255.255
Valid multicast addresses are:
224.000.000.001 to 239.255.255.255
Valid subnet masks are:
255.000.000.000 to 255.255.255.252
Default gateway/router:
The IP address of the gateway/router must be in the same subnetwork as the address of the
device.
Assigning IP addresses
The IP address is a 32-bit address, which consists of a network part and a user part. The
network part consists of the network class and the network address.
There are currently five defined network classes; Classes A, B, and C are used in modern
applications, while Classes D and E are hardly ever used. It is therefore usually sufficient if
a network device only "recognizes" Classes A, B, and C.
Figure 3-19
Position of bits within the IP address
DHCP option
If "DHCP release" is selected, an IP address can be assigned, which is then used if the
DHCP server is not available or if there is no response to the DHCP request for another
reason.
B i t 1
B i t 3 2
6 1 4 6 A 0 5 6
