Question on "ISPs" seeing routes to "Internal" router, basic lab
Hi, can you please see attached detailed lab diagram and question. Thanks much for your great help.
1) As is now, from "Backup" and "Primary" I can
see routes to "Internal" and ping "Internal" router.
In a real production environment, is this
behavior typical? I mean, typically people would prefer to avoid letting the service provider ping
"Internal" right? Or as long as I set a network for my internal clients and do not advertise that one to Edge and beyound, so then if ISP's have visibility to "Internal" router that should not be a problem?
If that is the case that Backup and Primary should be able to ping "Internal", is an access-list blocking traffic from Backup and Primary to "Internal" the way to go?
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