I've configured our internal Exchange servers to relay outbound mail through a proxy/firewall. <BR><BR>I've noticed that the headers on external emails contain the private IPof the internal mailserver ...

I know that you can not use internal IP addresses over the internet. Yet, all the router books and security books say that I should block any internal IP addresses from the internet at my border ...

A tiny bit of background, I've been running a tp-link with openwrt for way way longer than is advisable - and it started failing, so I dug out the router Vodafone/OneNZ gave me (a HG659 Vodefone Home ...

IP reuse of both third-party and internal IP is growing, but it’s also becoming more complex to manage. There is more IP being used, and more systems into which it needs to be integrated, combined ...