If you're using LWP::UserAgent and HTTP::Request, you can specify the HTTP_REFERER using HTTP::Request's header() method: 
# set up the user agent...

$req = HTTP::Request->new(GET => 'http://www.example.com');
$req->header('Referer' => 'http://www.yahoo.com');

# make the request and so on...

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In reply to Re: GET and POST HTTP_REFERER protected form? by chipmunk
in thread GET and POST HTTP_REFERER protected form? by ThingFish

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