Multiple IP addresses on a single NIC

At the console :

Load inetcfg enter

Bindings enter

insert enter

choose bind to

choose the NIC enter

add your new ip address and subnet mask

After you have updated go ahead and save config.

You will need to reboot or reinitialize.

What OS?
If 2K/XP, GO TO PROPERTIES OF THE NIC (TCP/IP),
ADVANCED,UNDER IPSETTINGS ADD IP'S THERE. DHCP HAS TO BE DISABLED TO USE MULTI IP FOR ONE NIC, DUE TO MAC ADDRESS - IP ASSOCIATION.

NT, YOU WILL HAVE TO DO SOME REGESTRY EDITING.. WHICH CAN BE FOUND ON MS SITE.
//HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Tcpip/Parameters/Interfaces IS THE KEY IN THE REGISTRY...

HOPE THIS HELPS

Are the LOAD and BIND commands still in your AUTOEXEC.NCF file, or have you used INETCFG to migrate them? If you haven't migrated to INETCFG yet, you should be able to modify the lines in the AUTOEXEC.BAT to look like this (unwrap as needed):

LOAD TCPIP

LOAD CE100B.LAN SLOT=2 NAME=ENET1

BIND IP TO ENET1 ADDR=1.1.1.1 MASK=255.255.255.255 GATE=1.1.1.2

BIND IP TO ENET1 ADDR=2.2.2.2 MASK=255.255.255.255 GATE=2.2.2.1

If using INETCFG, just go down to "BINDINGS" on the menu, then press the INSERT key to bind IP to the card again with a different set of credentials.

At the console prompt type "add secondary ipaddress xxx.xxx.xxx.xxx" (remove the quotes and use the address you want for xxx.xxx.xxx.xxx) Note! The secondary address needs to be in the same sub-net you currently have bound on the server.

If it works, just add the same line to the autoexec.ncf file and it will load everytime the server boots.