AASTRA SIP-DECT (Release 2.1)- OM System Manual - Installation, Administration and Maintenance EN - Manual (Page 128)

SIP – DECT OM System Manual Release 2.1 7 Configuration und Administration Aspects
depl-1230/1.3 Page: 128 (196)
7.5.3 Booter Startup
The SIP – DECT Release 2.0 (and higher) includes a booter version 3.4 with the following
new features:
• VLAN can be configured via the OM Configurator without a static IP configuration. This
means that the first DHCP request will be done by using VLAN.
• To balance the network load, up to three TFTP servers can be configured. This can be
done using the OM Configurator (local setting) or using the DHCP option 150. Before
starting the download, the TFTP server will be selected randomly by the booter. But, if the
option “Preferred TFTP server” was set by the OM Configurator, the option “TFTP server
address” will specify the TFTP server to use. No randomly selection will be done in this
case.
• To reduce the number of TFTP packets sent by the TFTP server, the packet size can be
increased. This will be done by using a TFTP option (see 7.5.1 “TFTP server
requirements”).
• Multicast TFTP download is possible if the TFTP server and the connected network
support this.
• To indicate the actual state of the booter, the four LEDs of the RFP will be used (see
7.5.5).
7.5.3.1 DHCP Client
Within the initial boot process the DHCP client supports the following parameters:
• IP address mandatory
• Net mask mandatory
• Gateway mandatory
• Boot file name mandatory
• TFTP server mandatory
• Public option 224: “OpenMobility” mandatory
• VLAN-ID optional
• TFTP server list optional
7.5.3.1.1 DHCP Request
The DHCP client sends the vendor class identifier (code 60) “OpenMobility” and requests the
following options in the parameter request list (code 55):
• Subnet mask option (code 1)
• Router option (code 3)
• VLAN ID option (code 132)
• TFTP server list (code 150)
• Public option 224 (code 224) (string “OpenMobility”)
• Public option 225 (code 225) (VLAN ID, not relevant for SIP - DECT)
• Public option 226 (code 226) (not relevant for SIP - DECT)