Pilz PSSnet SHL 8T MRP - Manual (Page 46)

Entering the IP Parameters
PSSnet SHL - Basic Configuration
Pilz GmbH & Co. KG, Felix- Wankel Str. 2, 73760 Ostfildern
2.6 System Configuration via DHCP
47
The special feature of DHCP in contrast to BOOTP is that the DHCP server
can only provide the configuration parameters for a certain period of time
(“lease”).
When this time period (“lease duration”) expires, the DHCP client must
attempt to renew the lease or negotiate a new one. A response similar to
BOOTP can be set on the server (i.e. the same IP address is always allocat-
ed to a particular client using the MAC address), but this requires the explicit
configuration of a DHCP server in the network. If this configuration was not
performed, a random IP address – whichever one happens to be available –
is allocated.
On delivery, DHCP is activated.
As long as DHCP is activated, the device attempts to obtain an IP address.
If it cannot find a DHCP server after restarting, it will not have an IP address.
To activate/deactivate DHCP
(see on page 50 „Web-based IP configura-
tion“) .
Note: When using HiVision network management, ensure that DHCP always
allocates the original IP address to each device.
In the appendix, you will find an example for the configuration of a BOOTP/
DHCP server
(see on page 180 „Setting up DHCP/BOOTP server“) .
Option Meaning
1
Subnet Mask
2 Time Offset
3 Router
4 Time server
12 Host Name
61 Client Identifier
66 TFTP Server Name
67 Bootfile name
Table 3: DHCP options which the device requests