Search worksheet for certain text + number combo and then increment the number

In various cells on a worksheet there is an entry "Ethernet0/1". Is there a macro that I could use that would search and find all entires and then increment them by 1 until all entires had been incremented? These entires would then look like:

Ethernet0/1
Ethernet0/2
Ethernet0/3
etc

It appears that each entry of Ethernet0/1 is on every 10th line.

Maybe this:

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It works in that it increments ever cell that contains Ethernet0/1 to Ethernet0/2. What I was hoping it would do woudl continue on down and keep incrementing so I would get Ethernet0/3, Ethernet0/4, etc.