Is it possible to limit the host provision (build) process to only create the pxe configuration file (based on mac address) on the (remote) tftp proxy server?

I'm currently getting the pxe config file created on the remote pxe server but then foreman continues the tftp host provisioning process on what appears to be the foreman server, where I don't have a tftp server running.

Here's the error I'm getting from foreman:

Started POST "/hosts" for clientIP at Mon Jul 16 12:00:34 -0400 2012
  Processing by HostsController#create as
  Parameters: {"authenticity_token"=>"Hj5vC7WmiTU0Ta1wru4ecfzwLk+iGlhw0cYilvH3FEA=", "utf8"=>"?", "host"=>{"name"=>"NEW-SERVER-NAME", "managed"=>"true", "subnet_id"=>"1", "architecture_id"=>"1", "comment"=>"", "compute_resource_id"=>"", "sp_mac"=>"", "provision_method"=>"build", "overwrite"=>"false", "puppet_proxy_id"=>"4", "mac"=>"NEW-SERVER-MAC", "domain_id"=>"1", "sp_name"=>"", "hostgroup_id"=>"4", "build"=>"1", "root_pass"=>"[FILTERED]", "enabled"=>"1", "ptable_id"=>"11", "is_owned_by"=>"2-Users", "environment_id"=>"2", "progress_report_id"=>"[FILTERED]", "ip"=>"NEW-SERVER-IP", "sp_subnet_id"=>"", "model_id"=>"", "puppetclass_ids"=>[""], "sp_ip"=>"", "disk"=>"", "operatingsystem_id"=>"1"}}
Add the TFTP configuration for NEW-SERVER-FQDN
Failed to set TFTP: 500 Internal Server Error
Rolling back due to a problem: TFTP Settings for NEW-SERVER-FQDN         20      failed  NEW-SERVER-FQDNsetTFTP
Failed to save: Failed to set TFTP: 500 Internal Server Error
Rendered hosts/_progress.erb (0.1ms)
Rendered puppetclasses/_selectedClasses.html.erb (0.0ms)
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