Specifications

Installation and startup procedure
62
3.4 Basic settings
RS2-4R
Release 1.0 03/04
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;