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primos User Manual Print
39
Configuring the primos Subdomain as Search Domain on iOS Devices Automatically
The primos subdomain can be defined as search domain automatically on all iOS devices
using your DHCP server. In order to do so, the primos subdomain is entered on the DHCP
server as option 119. As soon as an iOS sends a request to the DHCP server, it will
automatically receive the primos subdomain as search domain in the answer. The iOS
device will save this information automatically.
Preparation As an example the configuration procedure on Windows Server 2012 is described. On the
DHCP server on Windows 2012, subdomain must be entered in coded form (according to
RFC 3397). As this coding is difficult, the primos Control Center provides a coding tool. If
you enter your IPv4 DHCP range and primos subdomain, it will give you the command line
command which contains your primos subdomain and IPv4 DHCP range in coded form.
1. Start the primos Control Center.
2. Select
MAINTENANCE – Service .
3. In the DHCP option 119 area, enter your IPv4 DHCP range in the DHCP range box.
4. In the DHCP option 119 area, enter your primos subdomain in the primos subdo-
main box.

The Command box will show the command line commands. Save the command line
commands (e.g. as text file or in the clipboard).
Configuration The Windows Server graphical user interfaces do not offer a user-friendly configuration
interface for the DHCP option 119. Therefore the configuration on Windows Server 2012
is described below using the command line.
Example To illustrate the configuration, the following example is used.
Your primos subdomain is: primos.mydomain.com
Your IPv4 DHCP range is: 10.168.0.0
Command line commands:
REM entered DHCP range is 10.168.0.0
REM entered primos subdomain is primos.mydomain.com
netsh dhcp server V4 delete optiondef 119
netsh dhcp server V4 add optiondef 119 "DNS Search Path" BYTE 1
netsh dhcp server V4 scope 10.168.0.0 set optionvalue 119 BYTE 06 70 72 69
6d 6f 73 08 6d 79 64 6f 6d 61 69 6e 03 63 6f 6d 00
Note
The first two lines are for information only. Therefore they are labeled as comment with
'REM' and thus excluded from execution.