Couple issues here… you tx on 1&2 and rx on 3&6… if you need a xover then you flip one end… that being said the colors are wrong… they are just punched in order in the pic which is what you’d do for phone. The pairs are wrapped at different rates which matters from an Ethernet standpoint. So re punch WO O WG B WB G WB B and flip the tx/rx on one end of you need a xover (but you prob don’t)

Nothing to do with routing … the first part of a L2 MAC address is the OUI… organizationally unique identifier… so they know the device type.