I know that the IP addresses in range 192.168.0.0 – 192.168.255.255 are reserved and to be used for private network.
My system IP is in 10...* range (private). It is connected to our corporate Intranet and it further connects to the Internet through a proxy. When I try to check my IP (by accessing http://whatismyip.org/ for example), it shows the IP as 192.168.x.x (i.e. in private range). How can this be possible?
Is it acceptable to use the IPs in the private range as a public IP? Does it mean that there is no NAT happening before the requests leave our internal network?
Best Answer
Any IP can be routed. But a network admin or an ISP that's worth their salt will block the egress/ingress of packets sourced from or destined for those addresses at the edge of their network.
There is no good that can come of allowing that traffic in or out of your network. Apply:
to the outbound interface of your edge router. Reverse for the inbound.