Re: Difference b/w these?
192.168.x.x is a private address behind a router. The range 192.168.0.0 has been set aside (along with 10.0.0.0 and 172.16.0.0) for use by companies or home networks.
141.151.x.x is a public address that is unique and provided by your ISP. No one else can use the specific address that has been assigned to you if its statically assigned or until the lease has been released and reassigned.