Dear colleagues, Mark Smith wrote a short series about Network Address Translation (NAT): The Trouble with NAT (Part 1 - 3). https://labs.ripe.net/Members/mirjam/the-trouble-with-nat-part-1 https://labs.ripe.net/Members/mirjam/the-trouble-with-nat-part-2 https://labs.ripe.net/Members/mirjam/the-trouble-with-nat-part-3 Please note that this was originally published on the APNIC blog. Kind regards, Mirjam Kuehne RIPE NCC