docs(ins): removed cgnat

removed outdated information about cgnat

Author: bene2k1

pages/instances/concepts.mdx

@@ -26,12 +26,6 @@ import StorageBootOnBlock from '@macros/storage/boot-on-block.mdx'
 
 <StorageBootOnBlock />
 
-## Carrier-grade NAT (CGNAT)
-
-Scaleway used a 1:1 carrier-grade (CGNAT) setup for legacy Instance types. With this architecture, each Instance was assigned a unique NAT IP that directly mapped to a unique public IP, unlike standard CGNAT, where multiple users share a single public IP.
-This setup ensured that all outbound and inbound traffic for an Instance was translated between these two addresses, preserving the exclusivity of IP addresses and avoiding certain connectivity issues related to a shared IP setup.
-All recent Instance types support routed IPs through [IP mobility](#ip-mobility).
-
 ## Cloud-init
 
 Cloud-init is a multi-distribution package that [provides boot time customization for cloud servers](/instances/how-to/use-boot-modes/#how-to-use-cloud-init). It enables an automatic Instance configuration as it boots into the cloud, turning a generic Ubuntu image into a configured server in a few seconds.
@@ -176,4 +170,4 @@ Tags allow you to organize, sort, filter, and monitor your cloud resources using
 
 ## Volumes
 
-<Volumes />
+<Volumes />