Download Directed Electronics RS2.1 Specifications

Installation and startup procedure
3.4 Basic settings
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
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
assigned 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 assigned.
As long as DHCP is activated, the RS2-4R 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 “Configure the network” on page 144.
Note: When using HiVision network management, ensure that DHCP always
assigns the original IP address to each RS2-4R.
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;
}
#
# Host hugo requests IP configuration
# with his client identifier.
#
host hugo {
# option dhcp-client-identifier "hugo";
option dhcp-client-identifier 00:68:75:67:6f;
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RS2-4R
Release 1.0 03/04