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| + | <p style="color:red">The information in this page is updated in accordance with firmware version '''[https://wiki.teltonika-networks.com/view/FW_%26_SDK_Downloads 00.07.03]'''. |
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| ==Introduction== | | ==Introduction== |
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| Created VLANs in the WebUI should look similar to this: | | Created VLANs in the WebUI should look similar to this: |
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− | [[File:3vlansforintervlan.png|border|class=tlt-border|]] | + | [[File:3vlansforintervlans.png|border|class=tlt-border]] |
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| ==VLAN to VLAN communication with one firewall zone== | | ==VLAN to VLAN communication with one firewall zone== |
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| + | Once VLANs are created - they lay under one firewall zone, here is a Topology of the network and the zone which covers all 3 of VLANs: |
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| + | [[File:Topo one zone vlans.jpg|600px|border|class=tlt-border]] |
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| Initially, when we create VLAN interfaces, all VLANs are able to communicate with each other, for example pinging from lan to lan2: | | Initially, when we create VLAN interfaces, all VLANs are able to communicate with each other, for example pinging from lan to lan2: |
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| ==VLAN to VLAN communication with inter-zone forwarding== | | ==VLAN to VLAN communication with inter-zone forwarding== |
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− | In order to get more control over VLANs, an '''inter-zone''' forwarding functionality should be used. To start with, we will need to create new firewall zones: LAN1, LAN2 and LAN3. To add new zones, navigate to '''Network -> Firewall -> General Settings'''. In the Zones section, press ADD button to add a new zone. | + | In order to get more control over VLANs, an '''inter-zone''' forwarding functionality should be used. Here is a network topology with firewall zones and an explanation. |
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| + | [[File:3zonetopology.png|600px|border|class=tlt-border]] |
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| + | To start with, we will need to create new firewall zones: LAN1, LAN2 and LAN3. To add new zones, navigate to '''Network -> Firewall -> General Settings'''. In the Zones section, press ADD button to add a new zone. |
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| [[File:Addnewfwzone1.png|border|1000px|class=tlt-border|]] | | [[File:Addnewfwzone1.png|border|1000px|class=tlt-border|]] |
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| * Forward: Reject | | * Forward: Reject |
| * Covered networks: lan | | * Covered networks: lan |
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| + | '''Note''': By setting the Input and Output zones to '''Accept''' traffic is allowed to enter and leave the zone. '''Forward: Reject''' blocks communication between zones - this is a default policy. '''Inter-zone forwarding''' section can be used to modify the default behavior of the Forward zone and allow communication between zones. |
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| [[File:Lan1zonesettings.png|border|class=tlt-border|]] | | [[File:Lan1zonesettings.png|border|class=tlt-border|]] |
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| ---- | | ---- |
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− | Follow these steps to create Firewall Zones lan2 and lan3. Lan2 zone settings: | + | Follow the same steps to create Firewall Zones '''lan2''' and '''lan3'''. '''Lan2''' zone settings: |
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| * Name: lan2 | | * Name: lan2 |
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| * Covered networks: lan2 | | * Covered networks: lan2 |
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− | Lan3 zone settings: | + | '''Lan3''' zone settings: |
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| * Name: lan3 | | * Name: lan3 |
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| [[File:Newlycreatedfirewallzones.png|border|1000px|class=tlt-border|]] | | [[File:Newlycreatedfirewallzones.png|border|1000px|class=tlt-border|]] |
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| + | ---- |
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| + | Now, to attach these zones to the corresponding interfaces, we need to go back to the Network Interfaces tab ('''Network -> Interfaces -> General'''). Click edit on the lan interface and navigate to Firewall settings. In Create / Assign firewall-zone section, select lan1: |
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| + | [[File:Interfacesfireewallsettings.png|border|class=tlt-border|]] |
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| + | Follow these steps to attach the corresponding zone to the interfaces: |
| + | * lan2 interface – firewall zone lan2 |
| + | * lan3 interface – firewall zone lan3 |
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| + | ==Inter-zone forwarding use examples== |
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| + | To customize communication between VLANs, we will need to edit Inter-zone forwarding rules. Navigate back to the firewall settings ('''Network -> Firewall -> General settings''') and edit zones according to your needs. |
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| + | ---- |
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| + | Example: '''lan1''' wants to communicate only with '''lan2''': |
| + | * lan1 settings: allow forward to destination zones: lan2 |
| + | * lan1 settings: allow forward from source zones: lan2 |
| + | * No need to change settings for the lan2 zone |
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| + | If '''lan1''' to '''lan2''' communication is allowed, zone settings should look like this: |
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| + | [[File:2022-12-14 12-52 lan1 and lan2.png|border|class=tlt-border|]] |
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| + | Testing the communication between '''lan1''' and '''lan2''': |
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| + | [[File:2022-12-14 12-54 pings work.png|border|class=tlt-border|]] |
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| + | ---- |
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| + | If we try to reach '''lan3''' from '''lan1''', where the forwarding is not set, the result would be this: |
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| + | [[File:2022-12-14 12-56 pings not work.png|border|class=tlt-border|]] |
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| + | To reach '''lan3''' from '''lan1''', edit '''lan3''' zone accordingly: |
| + | * allow forward to destination zones: lan1 |
| + | * allow forward from source zones: lan1 |
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| + | Zone settings after these changes should look like this: |
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| + | [[File:2022-12-14 12-57 zones after changes.png|border|class=tlt-border|]] |
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| + | Now the communication between '''lan1''' and '''lan3''' works: |
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| + | [[File:2022-12-14 12-59 pings go.png|border|class=tlt-border|]] |
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| + | Using these examples as a base, you can allow / reject VLAN to VLAN communication between different VLANs according to your needs. |
| + | [[Category:Router control and monitoring]] |