Ethernet & AirPort

[momsfudge59]

ETHERNET:

I have a network of 3 eMacs connected via Ethernet and a linksys router. I run a business software program on all three computers, however the sales,client, data is stored only on the server computer. There is no internet on this network. The program on the two slave computers needs to point to the server in order to work. I have been having trouble with the IP address on the server computer. IT KEEPS ON CHANGING AND CRASHING THE PROGRAM! Yesterday, I went into the Network Panel and changed the DHCP to DHCP with manual address and set it to 168.192.1.102. I was able to get my network up and running but is this the correct fix?

AIRPORT:

I also have a wireless broadband router in the office and AirPort cards in all of the eMacs. Can I simultaneously configure the two (non-server) computers to log into the internet via AirPort while staying connected to the Ethernet router for the business software?

Mark

[Raven]

You can assign IP addresses to specific MAC addresses on the router (most have this option nowadays) so only that machine will get the specified IP. Using manual IP on your servercan cause problesm as the Ip is not reserved for it, so any user coming in on DHCP while there is no DHCP lease for your server (thus reserving its IP) it can get the IP you specified manually on your server machine so you'd get a conflict when you startup your server again. So best of setting this on the router.

[hayne]

If you use manually-assigned IP addresses, you must use IP addresses that are outside of the range of those assigned by whatever DHCP server is running on that network.
Most DHCP servers are configured to only assign a certain range - this is often specified as a single number - e.g. 100 might mean that it will assign IP addresses in the range from 192.168.1.2 up to 192.168.1.101