Specifications

Installation and startup procedure
RS2-4R
Release 1.0 03/04
3.4 Basic settings
61
3.4.5 System configuration via DHCP
(dynamic host configuration protocol)
The DHCP responds similarly to the BOOTP and offers in addition the
configuration of a DHCP client with a name instead of the MAC address. For
the DHCP, this name is known as the "client identifier" in accordance with rfc
2131.
The RS2-4R uses the name entered under sysName in the system group of
the MIB II as the client identifier (see
page 179). You can enter this system
name directly via SNMP, the Web-based management (see “System data”
on page 130), or the user interface (see “System parameters” on page 213).
On startup, an RS2-4R receives its configuration data according to the
"BOOTP/DHCP process" flow chart
(see Fig. 13).
The RS2-4R sends its system name to the DHCP server. The DHCP server
can then assign an IP address as an alternative to the MAC address by using
the system name.
In addition to the IP address, the DHCP server sends
– the tftp server name (if present),
– the name of the configuration file (if present).
The RS2-4R accepts this data as configuration parameters (see “Configure
the network” on page 144).
If an IP address was assigned by a DHCP server, it will be permanently
saved locally.
Option Meaning
1 Subnet Mask
2 Time Offset
3 Router
4 Time server
12 Host Name
66 TFTP Server Name
67 Bootfile name
Table 4: DHCP options which the switch requests