in my current scenario, I have 4 interfaces configured with different Public IP address and each interface linked to the different router and each interface have different services (Internet Email1, Email2, VPN) Our Plan to get a new line from a new ISP, in these case, we got only one router and the old Routers we canceled and we will get 6 Public IP address My Question : 1- How I configure the 4 interfaces to one router 2- required configure subinterface 3- what is the requirement for complete this project
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