Has this been documented in diskless.8 or bootparams.5 ? :)

On Tue, 9 Sep 1997, Gordon W. Ross wrote:

> I've implemented a cute little hack that allows our Sun-style
> diskless boot client code (using the bootparams RPC) to learn
> both the correct gateway and subnet mask.  Commit message:
> 
> Circumvent the lack of a reliable gateway/netmask value in the
> Sun RPC bootparam/whoami return by requesting a "pseudo file"
> named "gateway" and using its contents as the gateway:netmask
> 
> Here is a sample section of my /etc/bootparams file:
> 
> eighty	root=eyore:/home/kanga/root \
> 	swap=eyore:/home/kanga/swap \
> 	dump=eyore:/home/kanga/swap \
> 	gateway=eyore:0xffffff80
> 
> Enjoy,
> Gordon
>