It's lie-nux. Originator Linus Torvalds is called lie-nuss. Not Linn Us. See Charlie Brown.
It's router as in trade route. It re-routes signals. Not router as in the rout of the Byzantines or as in grooving tool. Or, indeed, as in hunting for truffles.
Oh. And while we're on the subject, it's Jebel Ali as in Jebbel Alley. Not Gerbil Arlee.
Just so's we're clear...