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Couple of questions 1st,<br />
<br />
Is the PC and Firewall members of the same network?<br />
Is the interface the PC is on also a member of vlan 100?<br />
<br />
Colin
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Couple of questions 1st,

Is the PC and Firewall members of the same network?
Is the interface the PC is on also a member of vlan 100?

Colin

<div>
Hi, PC is on different VLAN, if we use a PC in the same VLAN, it can access the Firewall
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Hi, PC is on different VLAN, if we use a PC in the same VLAN, it can access the Firewall

<div>
Thats not a fault, that's intended operation. The whole point of vlans is to separate a physical network into virtual networks, so they do not have any interconnectivity. If you want them on different VLANs you'll most likely need a VLAN aware router.<br />
<br />
Hope that helps<br />
Colin
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Thats not a fault, that's intended operation. The whole point of vlans is to separate a physical network into virtual networks, so they do not have any interconnectivity. If you want them on different VLANs you'll most likely need a VLAN aware router.

Hope that helps
Colin

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You mean the diagram should change to this?<br />
ISP ------------- pfSense ----------------Router ----------------------- &nbsp;Core switch 3750 ---------- PC
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You mean the diagram should change to this?
ISP ------------- pfSense ----------------Router -----------------------  Core switch 3750 ---------- PC

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<div class="content wysiwyg-content">
Dear experts, we are testing pfSense firewall but could not access it via LAN network on a PC. This is our diagram:<br />
ISP ------------- pfSense ---------------- Core switch 3750 ---------- PC<br />
<br />
with this diagram, we could ping and access pfSense via web browser :<br />
ISP -------------- pfSense -------------- PC<br />
<br />
So I guess something wrong with the core switch and vlan setup, but we could not find why. In switch 3750, the interface connected to pfSense has access mode, vlan 100 - the same with pfSense LAN interface.<br />
<br />
Could you please suggest?
</div>
</div>


Dear experts, we are testing pfSense firewall but could not access it via LAN network on a PC. This is our diagram:
ISP ------------- pfSense ---------------- Core switch 3750 ---------- PC

with this diagram, we could ping and access pfSense via web browser :
ISP -------------- pfSense -------------- PC

So I guess something wrong with the core switch and vlan setup, but we could not find why. In switch 3750, the interface connected to pfSense has access mode, vlan 100 - the same with pfSense LAN interface.

Could you please suggest?

pfSense Firewall setup

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.

Software Firewalls

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.