LAN and WAN Network Infrastructure Management
Your LAN is what’s inside. Your WAN is how you reach everything else. PIP manages both.
Talk to PIP about your network →Local Area Network (LAN)
A local area network (LAN) connects devices within a limited physical area — a single building, an office floor, or a college campus. LANs use ethernet cables and wireless technologies to connect computers, printers, peripheral devices, and devices on the same network.
Routers assign private IP addresses to each device on the LAN via DHCP. Ethernet switches operate at Layer 2 of the OSI model, forwarding data between connected devices at speed. LAN speeds can reach 100 Gbps or faster — high speed data transfer with low latency, because data stays local.
LANs are owned and managed by a single entity — typically the business. Because a LAN is not exposed to the public internet, LANs are easier to secure than WANs. Fast communication between two devices on the same LAN is near-instantaneous, making LANs ideal for data sharing, file access, and connecting other computers and peripheral devices in close proximity.
Wide Area Network (WAN)
A wide area network (WAN) connects multiple LANs across great distances — a city, a country, or even the world. WANs cover a fairly broad geographic range, spanning over 50 km up to the entire globe. The internet itself is the largest WAN.
WAN infrastructure uses leased lines, fiber optic links, MPLS (multiprotocol label switching / multi protocol label switching), SD-WAN, and virtual private network tunnels to connect LANs across regions. Older WAN technologies include dial-up connections and cable modem links — now largely superseded by NBN and dedicated fiber.
WANs experience higher latency and lower speeds than LANs — typically 1 Gbps or less. Connections can experience congestion over long distance links. Data traverses infrastructure managed by an internet service provider, which means WANs require strong encryption and security protocols to protect data transmission across the outside world.
WAN vs LAN — key differences
| LAN | WAN | |
|---|---|---|
| Speed | High — LAN speeds exceed 100 Gbps; higher data transfer rates | Lower — Speeds typically ≤ 1 Gbps; speed LANs outperform WANs |
| Scope | Single building or campus — LAN covers a limited area | Cities, countries — WAN connects LANs across large distances |
| Ownership | Privately owned and managed by the business | Relies on internet service provider infrastructure or leased lines |
| IP | Private IP addresses assigned by routers via DHCP | Public IP addresses used for WAN-facing routers and internet access |
| Security | Not exposed to public internet — lower security risks | Data crosses public networks — higher security risks; encryption required |
| Media | Ethernet cables, Wi-Fi (radio waves) | Fiber optic, leased lines, SD-WAN, NBN, cable modem |
| Latency | Minimal — devices communicating on the same LAN | Higher — long distance communication across connected LANs |
Both LAN and WAN support two-way communication and transmit data between connected devices. The key differences are speed, scope, and security exposure. A LAN handles fast, local data transmission; a WAN provides internet connectivity and links between LANs across sites. Both require managed routers, correct IP addresses, managed routers, and proper configuration. Routers are the gateway between LAN and WAN — every data packet between the two passes through a router. LANs transmit data locally at high speed; WANs transmit data across distance.
Data integrity, data throughput, and data security all depend on how the LAN and WAN are configured.
Each LAN — and the LANs connected to it via the WAN — must be properly designed.
The 4 types of networks
Personal
Connects two devices in close proximity — Bluetooth between a phone and headset. A small network around one person.
Local
Connects computers and other devices within a campus or office. Wired and wireless. Privately owned.
Metropolitan
A metropolitan area network connects multiple LANs across a city — larger than a LAN, smaller than a WAN.
Wide
Connects LANs across large distances — different regions, countries, or the world. The internet is a WAN.
How PIP manages your LAN
PIP designs each LAN from the ground up: IP addressing scheme, VLAN segmentation (user, server, guest, IoT), topology planning, and hardware selection. Routers, switches, and wireless access points are deployed and configured across the LAN. Ethernet cables and wired connections are installed or coordinated with cabling contractors. Every connected device — workstations, printers, and other network devices — is documented.
The LAN is fully documented: IP register, network diagram, device inventory with firmware versions. Routers and switches are managed ongoing — firmware updates, monitoring, and fault resolution. PIP also manages the LAN’s managed firewall service, ensuring security policy matches the network’s VLAN segmentation.
“Nine out of ten networks PIP inherits have no VLAN segmentation — guest wireless, office workstations, servers, and IP cameras all sitting on the same flat broadcast domain. A guest in the meeting room can reach the file server. That’s not a quirk; that’s a security gap waiting to be exploited.”
— PIP Network Engineer
How PIP manages your WAN
PIP designs and supplies WAN connectivity through its own national internet network, operated from PIP’s Sydney data centers since 1995. WAN connections are right-sized for each business and each site. WAN connections — NBN, dedicated fiber, or SD-WAN — depending on throughput and redundancy requirements. Internet access is delivered on PIP’s own infrastructure, not resold from a third party.
For multi-site businesses with multiple locations, PIP configures site-to-site VPN tunnels and SD-WAN to connect LANs into a single complex network with consistent connectivity. Data centres in Sydney back the WAN infrastructure. Failover and redundancy — dual-link configuration with 4G/5G backup — keeps the WAN link available even when a primary connection drops.
Because PIP manages both the LAN and the WAN, there is no finger-pointing between a LAN provider and a WAN provider when a connectivity issue spans both layers. The routers at each site, the links between them, the internet connectivity, and the infrastructure are all managed by one team under one agreement — part of PIP’s network management services. That direct connection between local and wide-area management is the difference between a network that is managed and a network that is merely connected.
LAN and WAN — common questions
A local area network (LAN) connects computers and other devices within a limited area — an office, a single building, or a campus. A wide area network (WAN) connects LANs across long distances using internet infrastructure or leased lines from an internet service provider.
The key differences between a LAN and a WAN are speed (LANs are faster), geographic scope (WANs are larger), and ownership (LANs are privately owned, WANs often rely on public networks). A LAN transmits data locally; a WAN provides internet access and connectivity between sites.
On a router, the WAN port connects to your internet service provider — plug the cable from your NBN modem or fiber connection into the WAN port. This connects your local network to the outside world.
The LAN ports on a router connect to switches and other devices inside your network. Plugging a device into the WAN port instead of a local port is a common configuration error — routers treat traffic on each port very differently. Traffic on the WAN side goes to the internet; local-side traffic stays internal. Routers route between the two based on IP addresses and routing rules.
Home Wi-Fi is LAN technology. Wi-Fi uses radio waves to connect computers, phones, and other devices to a local area network within the same building. The router’s WAN port then connects that LAN to the internet.
So your devices are on the local network; the internet connection beyond the router is the WAN — the link between connected LANs. A LAN can use both wired connections (ethernet cables) and wireless — the transmission medium doesn’t change the network type.
The four types are: PAN (Personal Area Network — connects two devices like a phone and headset via Bluetooth, a limited number of devices in close proximity), LAN (Local Area Network — a computer network within a single building or campus), MAN (Metropolitan Area Network — connects other networks across a city), and WAN (Wide Area Network — connects LANs across different regions or the world). PIP manages local and wide-area infrastructure for Sydney businesses.
LAN, WAN, and everything in between
Whether you need a new LAN built from scratch, an existing network remediated, or WAN connectivity across multiple sites — PIP manages the full stack. One provider for both layers. No gaps. No finger-pointing.