A way of doubling up the ethernet port?

It's a PowerMac G4 gigabit ethernet dual 500MHz running OS9.2.2 & OSX with a laserwriter NT11 connected via an asante box into the ethernet port so that I can use the printer in both OSX & OS9. When I want to use the internet I have to disconnect the asante box in order to plug in the ethernet cable from the modem. Not very neat & the asante box doesn't like it much. How do I "double" the ethernet port so I can stay on the internet & keep the asante box on as well?

a Hub is a dumb box. Wiggle signals on any port and it repeats the wiggles at every other port.
So you just plug everything into a port on the Hub. The Cable modem goes into one port, the AsanteTalk goes into one port, and the Mac goes into one port. Whenever anybody wiggles their Ethernet signals, it gets repeated on all the other ports. Each smart device looks at the Addressing information on the front of each packet to decide whether this is a packet for me.
A switch accepts valid Ethernet packets, and stores them momentarily, then forwards them. Initially, it broadcasts all packets on all ports. But it very quickly builds a simple routing table that tells it where devices with a certain address last acknowledged a packet, and can send it to (only) the right port. That reduces traffic, eliminates invalid packets, and can change the speeds between devices and negotiate for the fastest possible connection speed for each device -- mis-matched speeds are no problem.
Again, you just plug a cable from each device into the switch.
A router is like a switch, but it has one more port intended to connect only to your Internet connection (Cable Modem, DSL, FIOS, Satellite, whatever). Only packets that are going toward the Internet go onto its Internet (Wide Area Network or WAN) port. It acts as your agent on the Internet, and hides your real addresses from the rest of the Internet. It is needed when you have more than one computer to get onto the Internet at once.
Message was edited by: Grant Bennet-Alder

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