autoyast http= port problem.

I need to use http to get the autoyast file. It works as expected, however I have to now use a different port. If I put http://ip:port/path in my network boot loader :port is not interpreted and I am left with a blue screen prompt asking for the http URL. Both my path and IP are present, but the port is not. If I append :port to the IP it works. However I need this to work in an automated way. I need this is for SLES8 x86, x86_64, ia64, and SuSE 8.1 and later. Thanks.