192.168.2.1 is the default IP for the home broadband routers sold under the brand name SMC and Belkin. This private IP address 192.168.2.1 is set as the default IP address at the factory.
After you purchase either a SMC or Belkin broadband router which has 192.168.2.1 as the default, you can change it simply by accessing the network router’s admin console.
192.168.2.1 as a Default Address
Since private IP addresses can be used over and over again (as long as they are on different networks) 192.168.2.1 is a common IP address that many home networks use to establish a default gateway.
Private IP addresses are non routable, so only one device at a time can use this IP address on a single network to avoid IP address conflicts.
192.168.2.1 as defined in the Internet RFC’s
192.168.2.1 is officially defined in RFC 1918: Address Allocation for Private Internets:
The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets:
10.0.0.0 – 10.255.255.255 (10/8 prefix)
172.16.0.0 – 172.31.255.255 (172.16/12 prefix)
192.168.0.0 – 192.168.255.255 (192.168/16 prefix)
Other Common Private IP Addresses