Hi guys. SP--eBGP---routerA--iBGP---L3switch----ospf----routerB----l3mpls---SP2
SP -service provider. In this diagram can i advertise public ip of my routerA to routerB via internal LAN ? Is there are any hidden difficulties at this case?
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You should not need to advertise your public IP segment locally to your internal routers. Your public IP should be advertised from router-a to SP and from router-b to SP2.
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