Network Address Translation (NAT) is a networking feature that allows many devices on a private network to share a single public IP address on the internet. It works by translating internal IP addresses to a public address as traffic leaves your network, then translating replies back to the correct internal device. For UK businesses this reduces the number of public IP addresses needed, adds a layer of privacy, and makes it easier to change internet providers without renumbering every device. NAT is commonly used on routers, firewalls and broadband gateways in offices, branches and home‑working setups.
GoodChoice IT configures NAT as part of secure network design, ensuring internal addressing schemes are consistent, documented and aligned with growth plans. We combine NAT with firewall rules, VPNs and segmentation so staff, contractors and cloud services can connect safely without exposing unnecessary internal systems to the internet.
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