networking - how to get Global IP address? -

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when pc connected network, getting couple of ip address.

1.) modem private ip address (will 192.168.1.3) 2.) isp address (by searching "my ip address" in google gives me global ip address)

my roommate connected same modem able ping global ip address not other person connected different network, why??

is there anyway in isp block icmp packets?? no 1 able ping other machine ?? or use different routing instances different sectors??

if want global ip address pc can login/ping should enable??

your router/modem gets dynamic ip isp whenever connect internet. address name says changing. if want constant public ip isp, must request isp same. comes @ high cost , not recommended unless serving high revenue generating data on machine.


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