Router manufacturers set every router with an IP address. For example, Linksys routers are configured with an IP address of 192.168.1.1. These address settings are well known and published, and can be easily discover by hackers if they know the router manufacturer and type.
Changing the IP address during the setup process, for example to 192.168.80.1 does not secure the router, but will make any attackers guessing for the IP address. Changing this setting, will automatically change the DHCP IP addresses handed out by your router to PC’s allowed on your network.
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