Problem: Trying to change IP address and vlan info on a 1760 router and a 2950 series switch. Basic router-on-a-stick configuration. Both devices are located far away and are being accessed through the serial link via telnet. We are copying the config changes from flash to the running config so that we can easily rollback via reboot. The question that I have is what is the best way to create the new VLAN (in this case vlan 10) on the switch so that it communicates properly. Should I just telnet in to the switch first before making any config changes and create the new vlan with the command: 2950(config)#vlan 10 command and then do a copy flash run or is there a way that I can create the new vlan in the config file and save it to flash so that when it is copied over to the running config it is properly created? I would prefer to do the second option if possible. I created this scenario in a lab and after creating vlan 10 via the command: 2950(config)#vlan 10 I looked at the running config and did not see it displayed but when you do a show vlan it is there and working so I am not sure what the commands would need to look like in the file in flash to make this work when it is copied to the running config. Is my only option to create the vlan before the copy flash run?