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appnote:userclass [2011/01/27 21:03]
mcb30 created
appnote:userclass [2011/03/24 11:32] (current)
mcb30
Line 5: Line 5:
One important practical application of the DHCP User Class is to break the infinite loop when using [[:howto:chainloading|PXE chainloading]].  In this use case, the DHCP server is set to hand out the iPXE binary [[http://boot.ipxe.org/undionly.kpxe|undionly.kpxe]] as the default boot filename for legacy PXE clients, with the "real" boot parameters being handed out only for requests from iPXE clients. One important practical application of the DHCP User Class is to break the infinite loop when using [[:howto:chainloading|PXE chainloading]].  In this use case, the DHCP server is set to hand out the iPXE binary [[http://boot.ipxe.org/undionly.kpxe|undionly.kpxe]] as the default boot filename for legacy PXE clients, with the "real" boot parameters being handed out only for requests from iPXE clients.
-For more complex configurations, you may wish to customise the DHCP User Class sent by iPXE.  You can do this by changing the ''user-class'' setting.  For example, an embedded script might contain:+For more complex configurations, you may wish to customise the DHCP User Class sent by iPXE.  You can do this by changing the ''[[:cfg:user-class]]'' setting.  For example, an embedded [[:scripting|script]] might contain:
    #!ipxe     #!ipxe
 
appnote/userclass.txt · Last modified: 2011/03/24 11:32 by mcb30
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