We have a Cisco 2950-24 switch on a remote location with single vlans.
Is it possible to do routing between vlans on that switch?
yes u can do it.
Unfortunatley not. The 2950 range of switches are purely Layer 2 switches.
Your only options to provide routing between the vlans on your 2950 switch is either
a. Uplink the switch to a router and configure "router on a stick (ROAS)" to provide inter vlan routing.
b. Swap the switch for a 3560/3750 model. These are multi layer switches and will provide intervlan routing. You will require the EMI image if you want to run routing protocols (RIP, OSPF, EIGRP etc).