Page 87 01/2007 AMT/PTD/PBX/0062/1/2EN
6.2.5.1.2 UPDATING THE BOOTER AUTOMATICALLY SO AS TO CHANGE THE VERSION
The update of booters with a release number change will be performed automatically when the
DHCP client in the application receives a DHCP offer comprising public option 254 with a value
‘UPDATE’.
6.2.5.2 SELECTING THE RIGHT DHCP SERVER
The DHCP client requests for its own IP address using code 50. The DHCP client will select the
DHCP server that offers the currently used IP address. Additionally, the mandatory options must
be offered or else the DHCP offer is ignored by the DHCP client.
If no matching reply was received, the DHCP client resends the request twice after 1 second.
Then the DHCP client waits 1 minute before resending 3 requests again.
If the DHCP client cannot accept a DHCP offer within 3 minutes, the RFP is reset.
6.2.5.3 MANDATORY OPTIONS
6.2.5.4 MAGIC STRING
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Public Option 224
The value of this option must be ‘OpenMobility’.
6.2.5.5 OMM IP ADDRESS
Public Option 226
The value is interpreted as OMM IP address. The length must be 4 bytes.
6.2.5.6 OPTIONAL FEATURES: SYSLOG SERVER IP ADDRESS AND PORT
Public Option 227
The value is interpreted as the IP address of the syslog server. The length must be 4 bytes.
Public Option 228
The value is interpreted as the port on which the syslog server is listening. The length must be 2
bytes.
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