DHCP client options

I have a problem connecting to our company network. It seems that IP addresses are only handed out to machines having certain DHCP client options. Is there a way to add these options to DHCP client requests in Mac OS X?

Macbook pro, Mac OS X (10.5.7)

Posted on Aug 5, 2009 12:50 AM

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4 replies

Aug 7, 2009 12:14 AM in response to moreelsj

Thanks for the information. It did however not advance me.
In Linux you can set DHCP options using the /etc/dhclient.conf file
I checked DHCP configuration for Mac OS X and I only found settable parameters in /System/Library/SystemConfiguration/IPConfiguration.bundle/Contents/Resources/I PConfiguration.xml.
There I find the following related to DHCP:
<key>DHCPAcceptsBOOTP</key>
<false/>
<key>DHCPAllocateLinkLocalAtRetryCount</key>
<integer>2</integer>
<key>DHCPDefendIPAddressCount</key>
<integer>3</integer>
<key>DHCPDefendIPAddressIntervalSeconds</key>
<integer>30</integer>
<key>DHCPFailureConfiguresLinkLocal</key>
<true/>
<key>DHCPInitRebootRetryCount</key>
<integer>2</integer>
<key>DHCPLocalHostNameLengthMax</key>
<integer>15</integer>
<key>DHCPRequestedParameterList</key>
<array>
<integer>1</integer>
<integer>3</integer>
<integer>6</integer>
<integer>15</integer>
<integer>119</integer>
<integer>95</integer>
<integer>252</integer>
<integer>44</integer>
<integer>46</integer>
<integer>47</integer>
</array>
<key>DHCPRouterARPAtRetryCount</key>
<integer>0</integer>
<key>DHCPSelectRetryCount</key>
<integer>3</integer>
<key>DHCPSuccessDeconfiguresLinkLocal</key>
<true/>

There seems to be a possibility to request certain server options but I cannot see any client options. I do not know if it is possible to set these options and did not find any documentation about this.
I tried a few things by adding some XML tags but got no success.

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DHCP client options

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