Hirschmann MS30, Power MICE, MACH 4000, OCTOPUS User Manual page 44

Entering the IP parameters
The special feature of DHCP in contrast to BOOTP is that the 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 at-
tempt 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 assi-
gned to a particular client using the MAC address), but this requires the ex-
plicit configuration of a DHCP server in the network. If this configuration was
not performed, a random IP address – whichever one happens to be availa-
ble – is assigned.
On delivery DHCP is enabled.
As long as DHCP is activated, the Switch 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
Interface" on page
Note: When using HiVision network management, ensure that DHCP always
assigns the original IP address to each Switch.
Refer to "Setting up DHCP/BOOTP Server" on page
DHCP server configuration example.
Example of a DHCP configuration file:
# /etc/dhcpd.conf for DHCP Daemon
#
subnet 149.218.112.0 netmask 255.255.240.0 {
option subnet-mask 255.255.240.0;
option routers 149.218.112.96;
}
#
# Host berta requests IP configuration
# with her MAC address
#
host berta {
hardware ethernet 00:80:63:08:65:42;
fixed-address 149.218.112,82;
}
44
"System configuration via the Web-based
47.
2.6 System configuration via DHCP
154) for a BOOTP/
Layer 2 Enhanced with Layer 2 Professional
Release 1.0 10/05