multi LAN sharing one printer

I have three IP addresses a, b, c provided by the business center. One computer A is using a IP and one printer is directly connected to this computer A. Computer B is sharing Internet through computer A, and sharing printer with computer A; Computer C using IP b, sharing printer with computer A; then finally a rounter using IP c to enable another three computers sharing internet connection.

All three IP addresses are in the same network.

My questions, how can I enable all the three computer under the router to sharing the printer that connected to computer A? Is it possible?

Thank you

I'm assuming you're using Windows. NETBIOS cannot be routed across subnets (unless you've got WINS server) so the PCs behind the router (on IP c) will not be able to share the printer. If your printer has a built-in print server, or you are able to get hold of a print server then you may be able to access the printer directly instead of as a shared printer.

Dalight,

Can't you use Port Management under the printer properites page to make this work. Point all PCs at the same port on the PC?? I'm sure I've done something similar here on a small network with one Printer and three PCs "directly" connected to it?!?!?!

Rockape, I think the problem is that the PCs are in a different subnet from the shared printer. There would be no problem if they were all in the same subnet.

Mmmmmm

Piglet, can you confirm if all the PCs are on the same subnet address, or different addresses?

Then Dalight and myself can perhaps try and help a bit more!!

Cheers

IP a&b is in one room, IP c is in another room, is there anyway to re-structure the connection to make all computers share the printer?

thanks