[Arrath]

If you're running their equipment, you may see your ISP provided modem's login page, which ideally should have whatever randomly generated password was on the sticker on the bottom of the modem when you got your service. A shade more secure than a router with default credentials.

[kelnos]

I'd hope you don't even see that. Your ISP shouldn't be exposing that to the internet by default, either. Ideally you get connection refused or an eventual timeout.