F How to Set Up VLAN Routing on a Netgear Managed Switch Using CLI Commands — Complete Guide - The Network DNA: Networking, Cloud, and Security Technology Blog
Home / Basics / Netgear / VLAN / How to Set Up VLAN Routing on a Netgear Managed Switch Using CLI Commands — Complete Guide

How to Set Up VLAN Routing on a Netgear Managed Switch Using CLI Commands — Complete Guide

July 06, 2026 , ,

Netgear Managed Switch  |  VLAN Routing  |  CLI Configuration  |  Step-by-Step

How to Set Up VLAN Routing on a Netgear Managed Switch Using CLI Commands — Complete Guide

Learn exactly how to configure inter-VLAN routing on Netgear managed switches using the Command Line Interface — with full CLI command examples, VLAN IP addressing, gateway configuration, verification steps, and real-world troubleshooting tips.

How to Set Up VLAN Routing on a Netgear Managed Switch Using CLI Commands — Complete Guide

One of the most powerful — and most misunderstood — capabilities of a Netgear managed switch is VLAN routing. When you create multiple VLANs on a switch to segment your network, devices on different VLANs cannot communicate with each other by default. That is intentional — VLANs provide isolation. But in a real-world network, you often need certain VLANs to communicate with each other: users need to reach servers, devices in different departments need shared access to printers, and all VLANs need a path to the internet.

The solution is VLAN routing — also called inter-VLAN routing — where the switch itself acts as a Layer 3 router between VLANs using Switched Virtual Interfaces (SVIs). Netgear's managed switch CLI makes this configuration straightforward once you understand the sequence of steps.

This guide is a comprehensive, expanded, and unique resource based on Netgear's official VLAN routing methodology — complete with real CLI examples, design explanations, common pitfalls, and expert tips that go well beyond the basics.

📌 Compatibility Notice

This guide applies to Netgear Layer 3 managed switches including the M4300, M4250, M4500, GSM7228S, GSM7252S, GSM7352S, FSM7328S, and other FASTPATH-based managed switch models. The CLI command syntax is consistent across these platforms. Some models require Layer 3 licensing to enable routing — check your switch documentation.

📋 Table of Contents

  1. What Is VLAN Routing and Why Do You Need It?
  2. Prerequisites Before Configuring VLAN Routing
  3. Understanding the Configuration Architecture
  4. Network Design Example Used in This Guide
  5. Step 1 — Access the Switch CLI
  6. Step 2 — Enable IP Routing on the Switch
  7. Step 3 — Create VLANs on the Switch
  8. Step 4 — Configure VLAN Routing Interfaces (SVIs)
  9. Step 5 — Assign Ports to VLANs
  10. Step 6 — Configure the Default Gateway Route
  11. Step 7 — Save and Verify the Configuration
  12. Advanced VLAN Routing Scenarios
  13. Troubleshooting VLAN Routing Issues
  14. VLAN Routing via the Web GUI (Cross-Reference)
  15. Frequently Asked Questions (FAQ)

1. What Is VLAN Routing and Why Do You Need It?

A VLAN (Virtual Local Area Network) is a logical network segment created on a switch that groups ports together regardless of their physical location. VLANs provide network segmentation, improved security, and reduced broadcast domains. However, VLANs are isolated by design — a device in VLAN 10 cannot talk to a device in VLAN 20 without a routing mechanism.

🔄 The VLAN Communication Problem

Imagine you have three VLANs on your network:

  • VLAN 10 — Management: Network devices, switches, APs (192.168.10.0/24)
  • VLAN 20 — Users: Staff computers and laptops (192.168.20.0/24)
  • VLAN 30 — Servers: File servers, print servers, databases (192.168.30.0/24)

Without VLAN routing, a user laptop in VLAN 20 cannot reach the file server in VLAN 30 — even though both are connected to the same physical switch. VLAN routing solves this problem by making the switch act as a router between VLANs.

💡 Two Methods of Inter-VLAN Routing

Method How It Works Best For
Layer 3 Switch SVIs Switch routes directly between VLANs using virtual interfaces — this guide's method Most efficient; recommended for managed switches
Router-on-a-Stick External router handles inter-VLAN routing via a trunk link with sub-interfaces Layer 2-only switches; existing router infrastructure

2. Prerequisites Before Configuring VLAN Routing

Before starting the VLAN routing configuration, confirm these prerequisites are met:

Requirement Details Status Check
Layer 3 Capable Switch Must be a Netgear managed switch supporting Layer 3 routing (M4300, M4250, GSM7xxx series) show version
CLI Access Available Console cable connected or SSH/Telnet access working Login test
Privilege Level 15 Admin access required — must be able to reach (Config) # prompt enable
IP Addressing Plan Know your VLAN numbers, subnet addresses, and gateway IPs for each VLAN Design doc
Port Assignment Plan Know which physical ports belong to which VLAN Design doc
Existing Config Backup Backup current running-config before making changes show running-config

3. Understanding the Configuration Architecture

Understanding how VLAN routing works at the architectural level will help you configure it correctly and troubleshoot it effectively when issues arise.

🏛️ SVI (Switched Virtual Interface) — The Core Concept

A Switched Virtual Interface (SVI) is a virtual Layer 3 interface associated with a VLAN. When you create an SVI for VLAN 10 and assign it an IP address (e.g., 192.168.10.1), that IP address becomes the default gateway for all devices in VLAN 10.

The switch's routing engine uses these SVIs as router interfaces — just like physical router ports — to make Layer 3 forwarding decisions between VLANs. Traffic arriving from VLAN 10 destined for VLAN 20 is routed through the switch's internal fabric without ever leaving the device.

📐 How a Routed Packet Flows Between VLANs

PC in VLAN 20 (192.168.20.100)
    │
    │  Sends packet to 192.168.30.50 (Server in VLAN 30)
    │  Default GW = 192.168.20.1 (VLAN 20 SVI on switch)
    │
    ▼
Switch receives packet on VLAN 20 port
    │
    │  Layer 2 lookup → destined for SVI 192.168.20.1
    │  Layer 3 routing table lookup → 192.168.30.0/24
    │  Next hop = directly connected on VLAN 30 SVI
    │
    ▼
Packet forwarded out VLAN 30 interface
    │
    ▼
Server in VLAN 30 (192.168.30.50) receives packet

⚠️ Critical Design Point — SVI IP as Default Gateway

Every device in a VLAN must have its default gateway set to the SVI IP address of that VLAN — not the IP address of a separate router. This is the most common mistake when implementing inter-VLAN routing on managed switches. Devices that still point to an external router as their gateway will fail to reach other VLANs through the switch.

4. Network Design Example Used in This Guide

Throughout this guide, we will use the following network design as our working example. This is a typical small-to-medium business network with four VLANs routed on a single Netgear managed switch.

VLAN ID VLAN Name Subnet SVI Gateway IP Switch Ports Purpose
VLAN 10 Management 192.168.10.0/24 192.168.10.1 0/1 – 0/4 Network equipment management
VLAN 20 Users 192.168.20.0/24 192.168.20.1 0/5 – 0/16 Staff workstations and laptops
VLAN 30 Servers 192.168.30.0/24 192.168.30.1 0/17 – 0/20 File, print, and application servers
VLAN 40 Voice 192.168.40.0/24 192.168.40.1 0/21 – 0/24 VoIP phones and UC systems

✅ Internet Gateway

In this example, the internet router is connected to port 0/24 (as a trunk or routed port). The internet router's LAN IP is 203.0.113.1. We will configure a default static route on the switch pointing to this router so all VLANs can reach the internet through a single gateway.

5. Step 1 — Access the Switch CLI

You can access the Netgear managed switch CLI through three methods. Choose the one appropriate for your situation:

Method 1 — Console Cable (Direct Serial Connection)

Best for initial setup or when network access is unavailable. Connect the RJ-45 console cable from the switch's console port to your PC (USB-to-serial adapter may be needed).

Open PuTTY or Tera Term → Serial → COM port → 115200 baud, 8N1, no flow control

Method 2 — SSH (Secure Shell — Recommended)

Encrypted remote CLI access over the network. Requires SSH to be enabled and the switch management IP to be reachable.

ssh admin@192.168.1.1       # From Linux/Mac terminal
# Or use PuTTY → SSH → 192.168.1.1 → Port 22

Method 3 — Telnet (Not Recommended for Production)

Unencrypted remote access — use only in isolated lab environments. Disable Telnet on production switches.

Entering the Configuration Mode:

# After connecting, you will see the login prompt:

User: admin
Password: [your admin password]

(Netgear Switch) >          ← User EXEC mode (read-only)

(Netgear Switch) > enable   ← Enter Privileged EXEC mode
Password:                   ← Enable password (may be blank)

(Netgear Switch) #          ← Privileged EXEC mode

(Netgear Switch) # configure  ← Enter Global Configuration mode

(Netgear Switch) (Config) #   ← You are now ready to configure

6. Step 2 — Enable IP Routing on the Switch

This is the most critical step — and the one most often forgotten. By default, Netgear managed switches operate only at Layer 2. IP routing must be explicitly enabled before the switch can route traffic between VLANs.

🔴 Most Common Mistake — Skipping This Step

If you configure all VLANs and SVIs but forget to run ip routing, inter-VLAN communication will silently fail. The SVIs will have IP addresses but the switch will not route between them. Always enable IP routing first.

# Enable IP routing globally (Layer 3 mode)
(Netgear Switch) (Config) # ip routing

# Verify IP routing is enabled
(Netgear Switch) (Config) # exit
(Netgear Switch) # show ip brief

# Expected output should show:
# IP routing: enabled

✅ Verification Command

show ip brief
show running-config | include ip routing

7. Step 3 — Create VLANs on the Switch

Before you can create routing interfaces for VLANs, the VLANs must exist in the switch's VLAN database. VLAN 1 exists by default and cannot be deleted — we create all additional VLANs manually.

# ── Create all four VLANs ─────────────────────────────────────
(Netgear Switch) # configure

# Create VLAN 10 — Management
(Netgear Switch) (Config) # vlan 10
(Netgear Switch) (Config) (Vlan 10) # name Management
(Netgear Switch) (Config) (Vlan 10) # exit

# Create VLAN 20 — Users
(Netgear Switch) (Config) # vlan 20
(Netgear Switch) (Config) (Vlan 20) # name Users
(Netgear Switch) (Config) (Vlan 20) # exit

# Create VLAN 30 — Servers
(Netgear Switch) (Config) # vlan 30
(Netgear Switch) (Config) (Vlan 30) # name Servers
(Netgear Switch) (Config) (Vlan 30) # exit

# Create VLAN 40 — Voice
(Netgear Switch) (Config) # vlan 40
(Netgear Switch) (Config) (Vlan 40) # name Voice
(Netgear Switch) (Config) (Vlan 40) # exit

✅ Verify VLANs Were Created

show vlan brief

# Expected output:
# VLAN   Name              Status
# ----   ----              ------
# 1      Default           Active
# 10     Management        Active
# 20     Users             Active
# 30     Servers           Active
# 40     Voice             Active

8. Step 4 — Configure VLAN Routing Interfaces (SVIs) — The Core Step

🎯 What This Step Does

This is the central step of VLAN routing configuration. For each VLAN that needs to participate in routing, you create a virtual interface (interface vlan X), enable routing on it (routing), assign an IP address, and bring the interface up (no shutdown). This IP address becomes the default gateway for all devices in that VLAN.

Complete SVI Configuration — All 4 VLANs

# ══════════════════════════════════════════════════════════════
# VLAN 10 — Management SVI
# Gateway: 192.168.10.1 | Subnet: 192.168.10.0/24
# ══════════════════════════════════════════════════════════════
(Netgear Switch) (Config) # interface vlan 10
(Netgear Switch) (Interface vlan 10) # routing
(Netgear Switch) (Interface vlan 10) # ip address 192.168.10.1 
255.255.255.0
(Netgear Switch) (Interface vlan 10) # no shutdown
(Netgear Switch) (Interface vlan 10) # exit

# ══════════════════════════════════════════════════════════════
# VLAN 20 — Users SVI
# Gateway: 192.168.20.1 | Subnet: 192.168.20.0/24
# ══════════════════════════════════════════════════════════════
(Netgear Switch) (Config) # interface vlan 20
(Netgear Switch) (Interface vlan 20) # routing
(Netgear Switch) (Interface vlan 20) # ip address 192.168.20.1 
255.255.255.0
(Netgear Switch) (Interface vlan 20) # no shutdown
(Netgear Switch) (Interface vlan 20) # exit

# ══════════════════════════════════════════════════════════════
# VLAN 30 — Servers SVI
# Gateway: 192.168.30.1 | Subnet: 192.168.30.0/24
# ══════════════════════════════════════════════════════════════
(Netgear Switch) (Config) # interface vlan 30
(Netgear Switch) (Interface vlan 30) # routing
(Netgear Switch) (Interface vlan 30) # ip address 192.168.30.1 
255.255.255.0
(Netgear Switch) (Interface vlan 30) # no shutdown
(Netgear Switch) (Interface vlan 30) # exit

# ══════════════════════════════════════════════════════════════
# VLAN 40 — Voice SVI
# Gateway: 192.168.40.1 | Subnet: 192.168.40.0/24
# ══════════════════════════════════════════════════════════════
(Netgear Switch) (Config) # interface vlan 40
(Netgear Switch) (Interface vlan 40) # routing
(Netgear Switch) (Interface vlan 40) # ip address 192.168.40.1 
255.255.255.0
(Netgear Switch) (Interface vlan 40) # no shutdown
(Netgear Switch) (Interface vlan 40) # exit

🔍 Breaking Down Each SVI Command

Command What It Does
interface vlan 20 Creates or enters the SVI configuration mode for VLAN 20
routing Enables Layer 3 routing on this VLAN interface — required on Netgear switches
ip address 192.168.20.1 255.255.255.0 Assigns the gateway IP and subnet mask for this VLAN
no shutdown Brings the interface up — SVI may be down by default without active ports in the VLAN

⚠️ Netgear-Specific: The "routing" Command

Unlike Cisco switches where you simply assign an IP to a VLAN interface, Netgear managed switches require the explicit routing command inside each VLAN interface before assigning an IP address. Forgetting this command means the interface will not participate in Layer 3 routing even if it has an IP address assigned.

9. Step 5 — Assign Ports to VLANs

With VLANs and SVIs created, you now assign physical ports to VLANs. Ports are configured as either access ports (single VLAN — for end devices) or trunk ports (multiple VLANs — for uplinks to other switches or routers).

# ── ACCESS PORT Configuration ─────────────────────────────────

# Ports 0/1 - 0/4 → VLAN 10 (Management)
(Netgear Switch) (Config) # interface range 0/1-0/4
(Netgear Switch) (Interface 0/1-0/4) # switchport mode access
(Netgear Switch) (Interface 0/1-0/4) # switchport access vlan 10
(Netgear Switch) (Interface 0/1-0/4) # spanning-tree portfast
(Netgear Switch) (Interface 0/1-0/4) # exit

# Ports 0/5 - 0/16 → VLAN 20 (Users)
(Netgear Switch) (Config) # interface range 0/5-0/16
(Netgear Switch) (Interface 0/5-0/16) # switchport mode access
(Netgear Switch) (Interface 0/5-0/16) # switchport access vlan 20
(Netgear Switch) (Interface 0/5-0/16) # spanning-tree portfast
(Netgear Switch) (Interface 0/5-0/16) # exit

# Ports 0/17 - 0/20 → VLAN 30 (Servers)
(Netgear Switch) (Config) # interface range 0/17-0/20
(Netgear Switch) (Interface 0/17-0/20) # switchport mode access
(Netgear Switch) (Interface 0/17-0/20) # switchport access vlan 30
(Netgear Switch) (Interface 0/17-0/20) # exit

# Ports 0/21 - 0/23 → VLAN 40 (Voice)
(Netgear Switch) (Config) # interface range 0/21-0/23
(Netgear Switch) (Interface 0/21-0/23) # switchport mode access
(Netgear Switch) (Interface 0/21-0/23) # switchport access vlan 40
(Netgear Switch) (Interface 0/21-0/23) # exit

# ── TRUNK PORT Configuration ──────────────────────────────────
# Port 0/24 → Trunk uplink (to router/upstream switch)

(Netgear Switch) (Config) # interface 0/24
(Netgear Switch) (Interface 0/24) # switchport mode trunk
(Netgear Switch) (Interface 0/24) # switchport trunk allowed 
vlan 10,20,30,40
(Netgear Switch) (Interface 0/24) # switchport trunk native vlan 10
(Netgear Switch) (Interface 0/24) # description 
"Uplink-to-Internet-Router"
(Netgear Switch) (Interface 0/24) # exit

💡 Voice VLAN — Dual VLAN Port for IP Phones

If you have IP phones that need to tag voice traffic to VLAN 40 while passing PC data traffic on VLAN 20 (a common scenario), configure the port for both VLANs. The phone tags its own voice traffic to VLAN 40 while the untagged data traffic passes through to VLAN 20:

(Netgear Switch) (Config) # interface 0/22
(Netgear Switch) (Interface 0/22) # switchport mode trunk
(Netgear Switch) (Interface 0/22) # switchport trunk native 
vlan 20
(Netgear Switch) (Interface 0/22) # switchport trunk allowed 
vlan 20,40
(Netgear Switch) (Interface 0/22) # exit

✅ Verify Port VLAN Assignments

show vlan id 20
show interfaces switchport 0/5
show interfaces switchport 0/24
show vlan brief

10. Step 6 — Configure the Default Gateway Route

With VLAN routing configured, devices in different VLANs can now reach each other. But they still cannot reach the internet — because the switch does not know where to send traffic destined for external IP addresses. A default static route solves this.

# ── Static Default Route — All internet traffic to router ──────
# 0.0.0.0 0.0.0.0 = "all destinations not in routing table"
# 203.0.113.1 = IP address of your internet router's LAN port

(Netgear Switch) (Config) # ip route 0.0.0.0 0.0.0.0 203.0.113.1

# ── Additional Specific Static Routes (optional examples) ──────

# Route to remote site (WAN link) via dedicated router
(Netgear Switch) (Config) # ip route 10.0.0.0 255.0.0.0 192.168.10.254

# Route to branch office network via firewall
(Netgear Switch) (Config) # ip route 172.16.0.0 255.240.0.0 192.168.10.253

# ── Verify routing table ───────────────────────────────────────
(Netgear Switch) (Config) # exit
(Netgear Switch) # show ip route

📊 Expected Routing Table After Configuration

# show ip route output (example):

C   192.168.10.0/24    directly connected, Vlan10
C   192.168.20.0/24    directly connected, Vlan20
C   192.168.30.0/24    directly connected, Vlan30
C   192.168.40.0/24    directly connected, Vlan40