Modern devices don’t need this anymore, but older web link devices might.

This is where you need a “crossover” cable.

What Is an Ethernet Crossover Cable?

Power and ethernet cable plugged into the back of an Apple Mac Mini

Josh Hendrickson / How-To Geek

Related:What Kind of Ethernet (Cat5, Cat5e, Cat6, Cat6a) Cable Should I Use?

A cheap, fast, and reliable way to turn on Ethernet cable from your router into seven.

A versatile crimping, stripping, and cutting tool that supports standard and pass-thru RJ4 plugs.

31uEupbfioL.<em>SL160</em>

A cheap, fast, and reliable way to turn on Ethernet cable from your router into seven.

That being said, these days, it’s far easier to buy a pair of crossover adapters.

These little gadgets go onto the ends of an existing straight-through cable and convert them to crossover.

Easy-peasy, with no wire stripping or swearing required.

41BFlE4BuSL.<em>SL500</em>

A versatile crimping, stripping, and cutting tool that supports standard and pass-thru RJ4 plugs.

They turn your standard Ethernet cable into a crossover cable for ten bucks.

At least, you don’t if your web link gear is fairly recent.

41qgVa1fOrL.<em>SL160</em>

They turn your standard Ethernet cable into a crossover cable for ten bucks.