I am running Cisco 2911 router. I would like to test an internet connection from a new ISP. Can we make 2 configurations on a router? so that if by any chance I did not like the service of the ISP I can quickly go back to my existing configuration? OR please suggest an easy route I can take keeping in mind I do not want to touch the existing config but also would want to Test the new connection (the new ISP will give me some new static IPs)
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