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Deploying firewalls on core switches

Dec 29, 2025

Network Segmentation

Our consultants have suggested that we shouldn''t do this (mainly due to performance), and instead invest in another pair of firewalls to add another layer of protection between servers and clients -

Oct 23, 2025

Deploying Firewalls in Off-Path Mode

At the egress of a large campus network, core switches connect to routers to access the Internet through uplink interfaces. Firewalls connect to the core switches in off-path mode to filter

Jan 05, 2026

When to Route on Core Switches vs Next-Gen Firewalls in Enterprise

Learn when to use core switch routing vs next-generation firewall routing in enterprise networks. Explore performance, security zones, VRF design, and hardware platform selection.

Mar 27, 2026

CPwE-5-IFS-DIG.book

The Deploying Industrial Firewalls within a Converged Plantwide Ethernet Architecture Design and Implementation Guide (DIG) outlines several use cases for designing, deploying and managing

Aug 04, 2025

Design overview | FortiSwitch 7.4.0 | Fortinet Document Library

The core-level switches interconnect to the FortiGate units and provide aggregate distribution ports. The FortiGate units function as the next-generation firewall and the Security Fabric controller; they also

Mar 02, 2026

Connecting Core switch to firewall

Hi guys, I have a 3750X four-switch stack acting as the core of a fairly simple LAN. All I need to achieve (and this seems inordinately hard, but it is entirely likely that I''m just being dense) is

Jun 09, 2026

Gateways on Core Switch vs Firewall : r/networking

Gateways on Core Switch vs Firewall I''m struggling with some design options for a network redesign I''m planning at my company. The background: Today I''m running a relatively simple network topology.

Oct 07, 2025

Deploying Firewalls as Egress Devices

Configure interfaces and IP addresses on egress firewalls and core switches. Configure IP addresses for interfaces of FWA, and add the interfaces to security zones.

Jul 27, 2025

Trying to fit centralised firewall into network topology

I''m in the process of over-hauling our network, the issue I keep coming back to is: trying to bring layer 3 to the core, while still having a centralised firewall. The

Jul 13, 2026

Recommendation for a connection between Core Switch and Firewall

Solved: Hello, I am asking myself what others recommend for the connection between core switch and Firewall. The setup is the following: Two Catalyst 9300 Core switches in stack.

Sep 27, 2025

Firewall Deployment: Edge vs. Core

Limitations of Core Firewall Deployment However, placing firewalls at the core can introduce complexity in managing and maintaining network performance. Since these firewalls

Dec 31, 2025

Core layer | FortiSwitch 7.6.0 | Fortinet Document Library

The FortiGate devices in the core layer can use FGCP in active-passive mode with two to four firewalls or in active-active mode for increased performance through HA load-balancing.

Mar 07, 2026

Routing on firewall or core switches? : r/networking

On Fortigate or core switches. In my research I''m getting mixed suggestions - Some say that core switches are for routing, when others say that core switches have to be as fast as possible and have

Aug 04, 2025

L3 Core to Firewall question

My issue is in deciding whether to use the "core" switches OR the Fortigate firewall as the default gateway/L3 switch in the network. As far as my research has revealed, using the "core" for this

Mar 16, 2026

Support Documents and Downloads

Search technical documentation and downloads including firmware and drivers.

Nov 28, 2025

Solved: Firewall to 2 core switches

Look at this picture and tell me, is it possible to add another core switch and have them wired to firewall so, that it could improve availability (fault

Jul 16, 2025

Solved: Connectivity from Core to Firewall

You want to simply extend L2 all the way from the access switch to the firewall so all ports need to be L2 until they get to the L3 interface on the firewall. One thing to check is your access

Dec 03, 2025

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Aug 15, 2025

Network Segmentation

We usually deploy the FortiGate as the gateway of the server''s network and also the gateway of the backup network (don''t activate any type of UTM feature or deep inspection for the traffic between the

Jul 02, 2026

Should I build a VLAN between firewall and core layer 3

This firewall hangs directly off of our core, layer 3 routing switch. (See Current Configuration image below.) My question is, should I build a layer 3 Vlan

Sep 10, 2025

Small Office Network Setup with Fortinet Firewall & Core Switch

In this video, I demonstrate how to configure a Fortinet Firewall in a small office network setup using a core switch.

Feb 02, 2026

switching

If you are provides internet connectivity through firewall and you needs to filter all traffic in common manner for all VLANs, you can use different VLAN between core switch and firewall. then

Feb 21, 2026

Introducing Enterprise Firewall Core

Built-In High Availability and Resiliency Keeping services online is critical for enterprise operations. The Enterprise Firewall Core simplifies high

Dec 15, 2025

Deploying Firewalls as Egress Devices

Networking Requirements Two firewalls at the campus egress set up a hot standby group that functions as the egress gateway of the campus network to filter service traffic that enters and

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