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• Option 60 (vendor ID)
• Option 114 (URL)
• Option 120 (P-CSCF address)

Option 60
This option is used by DHCP clients to optionally identify the vendor type and configuration of a DHCP client.  The information is a string of n-octets, interpreted by servers.  Vendors may choose to define specific vendor class identifiers to convey particular configuration or other identification information about a client.

For example, the identifier may encode the client's hardware configuration.
E.g. Productname (e.g. "N510_IP_PRO") can be used.


Option 114
The option "114" is used for setting a new URL for the update server  which will perform the profile/ and SW download.
This option can be used for enabling the access to a Provider-specific update server.
Other options to set the update/data server URL are

• Provisioning (e.g. via profile download)
• SIP multicast (in local networks only)

Syntax
URLs are specified in RFC 1738.
The code for this option is 114, and its maximum length is 74.
 Code  Len    URL
+-----+---+----+----+----+---
| 114 | n | c1 | c2 | c3 | ...
+-----+---+----+----+----+---
 
Example
Here an example configuration of a Linux DHCP-Server:
 
dhcpd.conf
snip>>
option dhcp_114_FW_URL code 114 = text;
 
option dhcp_114_FW_URL  "profile.gigaset.com/device/";
 
# or for example
# option dhcp_114_FW_URL  "192.168.1.59:88/device/";
<<snip

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dhcp120 dhcp120

Option 120