Fortigate trunk port native vlan

Port 47 of the HP switch that is configured in trunk mode and member of Trk1 is connected to a Fortigate running 5. I want to connect the switch to the fortigate on one physical interface only. My experience with the 7 Fortigates that we have has been to stay away from using software switch if at all possible, due to performance issues. Using software switch prevents offloading to any built in asic chips your Fortigate may have.

I've never tried adding a subinterface to the WAN port, but I'd assume it would work the same as the other ports on the Fortigate. I remember hearing Fortigates have issues with tagging vlan1 because that is the native vlan used on the Fortigate. I would also update the firmware if you can to 5. DaveA-Doit thanks for the advice on software switch ports, but remember I did that just to check connectivity it was not my intention to leave it like that.

I end up contacting Fortigate support. All interfaces were removed and re-created the only difference is that in the routes I was not using priority but cost. The cost was left at 10 and the priority was changed.

A tip, if you can not remove an interface because is "bind" to an object related to a user account, check that there is no widget in the dashboard of the user pointing to that interface. As long are you are consistent with your labels, there should be no problem. The policies were pointing to the vlan sub-interface not the physical WAN2 interface. The tag for VLAN1 was fixed but that was not the problem.

Setting up VLAN and Trunks?

I removed the tag to vlan1 after connecting to the internet. Thanks for your help. To continue this discussion, please ask a new question. Get answers from your peers along with millions of IT pros who visit Spiceworks. What I did wrong with the vlan sub-interfaces? Please advice.

fortigate trunk port native vlan

Best regards. Popular Topics in General Networking. Which of the following retains the information it's storing when the system power is turned off? Thai Pepper. Verify your account to enable IT peers to see that you are a professional. Can you show the cli config of the 2 sub-interfaces that you tried to create?

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Maybe try using a port other than WAN My sub-interfaces look something like this: edit "intVLAN" set vdom "root" set ip Pure Capsaicin. Why does the trunk has tagged VLAN1 if it is not going to be used?

fortigate trunk port native vlan

Jeff-J This person is a verified professional. Edilcs Dec 8, at UTC. This time it works. Go figure. This topic has been locked by an administrator and is no longer open for commenting. Read these nextJoin us now! Forgot Your Password? Forgot your Username? Haven't received registration validation E-mail? User Control Panel Log out. Forums Posts Latest Posts. View More. Recent Blog Posts.

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fortigate trunk port native vlan

New Member. Network A is an existing production environment with simple setup. Router gives out IP to clients connected to switch with This is working fine. I am not sure what I am missing but I am figuring it has to do with port 2 interface in with IP of second network. I am able to ping from FG to the Router using this setup but not to client.

Any suggestions? I think you are on the right target - it is an issue related to having two potential gateways on the same network along with a client that is configured by dhcp for the single Cisco router gateway.

I would suggest reworking the topology to eliminate the clients routing decision. You also could manually add the network B route pointing to I would advise against adding a route on the Cisco pointing Network B to the Expert Member.These smaller domains forward packets only to devices that are part of that VLAN domain.

This reduces traffic and increases network security. The FortiGate unit can also forward untagged packets to other networks such as the Internet. The trunk link transports VLAN-tagged packets between physical subnets or networks. However, if multiple virtual domains are configured on the FortiGate unit, you only have access to the physical interfaces on your virtual domain.

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In this configuration, the FortiGate unit can apply different policies for traffic on each VLAN interface connected to the internal interface, which results in less network traffic and better security. In this example, two different internal VLAN networks share one interface on the FortiGate unit and share the connection to the Internet.

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This example shows that two networks can have separate traffic streams while sharing a single interface. This configuration can apply to two departments in a single company or to different companies. There are two different internal network VLANs in this example. The internal interface has an IP address of The external interface has an IP address of The external interface has no VLAN subinterfaces. In this example, both the FortiGate unit and the Cisco switch are installed and connected and basic configuration has been completed.

On the switch, you need access to the CLI to enter commands. No VDOMs are enabled in this example. In transparent mode, the FortiGate unit behaves like a layer-2 bridge but can still provide services such as antivirus scanning, web filtering, spam filtering, and intrusion protection to traffic.

The limits in transparent mode apply to IEEE You can insert the FortiGate unit operating in transparent mode into the VLAN trunk without making changes to your network. You can configure the unit to apply different policies for traffic on each VLAN in the trunk. Typically in transparent mode, you do not permit packets to move between different VLANs. Network protection features such as spam filtering, web filtering, and anti-virus scanning, are applied through the UTM profiles specified in each security policy, enabling very detailed control over traffic.

Two policies are required: one for each direction of traffic. You can also configure the protection profiles that manage antivirus scanning, web filtering, and spam filtering. Sample topology In this example, two different internal VLAN networks share one interface on the FortiGate unit and share the connection to the Internet.

Sample configuration In this example, both the FortiGate unit and the Cisco switch are installed and connected and basic configuration has been completed.

General configuration steps include: Configure the external interface.I just need to make sure I have this concept correct. I have two switches trunked to each other. Which is untagged traffic. The trunks can really only send untagged traffic between each other over native vlansince no vlans are being trunked, which means no tagged traffic is going across that trunk link.

How would I get traffic that's untagged on vlan to be able to communicate with untagged traffic on a switch that exists using just switchport access on its interfaces? Could I do switch those switches to trunk and then map from vlan to vlan 1 with a vlan mapping?

Would that allow the traffic to communicate with devices on the switchport access interfaces? By default all ports belong to vlan 1 which is not the native vlan now because you have changed it to vlan I think you misunderstood.

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Here's what's going on. We have a Cisco UCS environment with 1kv for handing the vethernets to the cluster. The VMs we are moving require access to our DMZ, which is basically just a switch with access ports, no vlans.

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So UCS basically need to tag everything, we were told to fake it with a native vlan and set the interfaces towards our DMZ as native interfaces. I don't really like the idea of using vlan 1 as that native vlan on UCS with our old network core still attached to it. It's a disaster zone with vlan 1 flying everywhere. So I was trying to use as the native vlan I thought any untagged traffic would talk to other untagged traffic regardless what the native vlan was. I would love to do that, but I need to be able to get the data from the trunked vlan to talk to the existing access switch ports, which are all untagged.

And that's why I was wondering if I did vlan mapping from let's say vlan to vlan 1 on the DMZ switch, would that allow the traffic coming from the truck to talk to the access ports since they are native vlan 1? By defaultNative vlan Vlan 1 traffic would be send untagged thr' trunk But you have changed native vlan to vlan So your vlan traffic would be send untaggged and vlan 1 traffic would be tagged. By default all ports would be in vlan 1 if we are not assigning to specific vlan.

Which is untagged traffic.? Buy or Renew.

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I have this problem too. All forum topics Previous Topic Next Topic. Rajeev Sharma. Cisco Employee. Hey Chris, Regarding your questions: 1. Regards, RS.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Network Engineering Stack Exchange is a question and answer site for network engineers. It only takes a minute to sign up. I have a very basic background on networking Cisco switchand realize that Fortiswitch E has the option to allow many VLANs in a port:.

On the other hand, is the trunk which I assume is the same as Cisco :. A trunk doesn't need to allow all VLANs, however. Other vendors use different terms for the same thing. A trunk in common usage carries frames with In your example above, a given frame might have any of the allowed VLAN numbers as tags and the switch will forward these frames based on the forwarding tables maintained for their respective VLAN's. A non-trunk port carries frames without an All frames received on such ports are associated to a single VLAN, and thus a single forwarding table.

End hosts PC's, for example typically generate untagged traffic and switches will strip tags off of frames before transmitting them via a port to said end host. To forestall another question - the idea of native VLAN is basically how untagged traffic received on a trunk port should be handled.

In the case above, untagged traffic would be treated as if it were in VLAN and, in turn, any hosts observed sending untagged traffic on this trunk port would receive untagged traffic as if they were in VLAN There are two port types: Access and Trunk. Sign up to join this community. The best answers are voted up and rise to the top.

Asked 1 year ago. Active 1 year ago.

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Viewed times. I have a very basic background on networking Cisco switchand realize that Fortiswitch E has the option to allow many VLANs in a port: On the other hand, is the trunk which I assume is the same as Cisco : I wonder what are the differences between them.

Why a port would allow many VLANs? Thanks in advance. Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you can provide and accept your own answer. Active Oldest Votes. Zac67 Zac67 Preview and Publish a Site The Weebly editor provides a pretty good picture of how your site will look when published, but you can also get an actual preview of both mobile and desktop.

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fortigate trunk port native vlan

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