Posts in this series
The posts in this series contain around 10,000 words on Network Address Translation! I know, that’s more than any sensible person should want to subject themselves to. In the enterprise world, IPv4 NAT is a necessary evil, usually seen between corporate networks and the public Internet or, occasionally between parts of a corporate network which really shouldn’t have to use it between them, but which unfortunately do.
As we say in the series, “Route if you can, NAT if you must” and if you must, here’s a deeper dive into the use of NAT in multi-tenant Service Provider networks where the enterprise issue of “we already use those addresses!” becomes, “if every tenant brings their own addresses to our platform, how do we avoid chaos?”