RUT956 VLAN setup doesn't work as espected

Teltonika Networks
1

Hi everyone,

I am trying to setup an RUT956, but it seems to behave different than expected.
I’ve updated the device to the latest firmware variant (07.05) but that didn’t work.

My goal:
Get 2 internal networks,
VLAN1, connected to Lan port 1 and 2, with dhcp server on 192.168.1.x
This network will get internet access to WAN, 4G and (temporarily) a wifi client link.

VLAN2, is only connected to LAN port 3, with its own dhcp server on 192.168.2.x.
No Wan access, only internal routing.

Both VLAN’s are to be completely separate from eachother.

What i have done:

Create 2 port based vlans:
Vlan 1 has LAN1 and LAN2 untagged, LAN3 and WAN off.
VLAN 2 has LAN3 untagged, LAN1, LAN2 and WAN off

Create 2 LAN interfacs:
“LAN”,

  • General settings: static, ip address 192.168.1.1
  • physical settings: bridge intefaces: OFF, interface: eth0.1.
  • firewall settings: create/assign firewall zone: LAN (pre-exisiting)
  • DHCP settings: DHCP enable, IP range 100-254, lease 12h
  • Other tabs unchanged

“internal_only”

  • General settings: static, ip address 192.168.2.1
  • physical settings: bridge intefaces: OFF, interface: eth0.2.
  • firewall settings: create/assign firewall zone: internal_lan (created)
  • DHCP settings: DHCP enable, IP range 100-254, lease 12h
  • Other tabs unchanged

Firewall settings:
LAN-> WAN: In & output: accept, forward: reject
WAN → LAN: Input & forward: reject, output: accept
internal → WAN+LAN: all reject
WAN → internal: all reject
LAN–> internal: all reject

Now, if i connect my laptop to LAN2. I get an 192.168.1.x IP address as expected.
However, i’m still able to ping both 192.168.1.1 and 192.168.2.1, while the last should not be possible.

If i connect my laptop to LAN3, i’d expect a 192.168.2.x address, but i get no lease at all. the DHCP request times out.

As far as i’m aware, i’m doing all steps from these guides:
https://wiki.teltonika-networks.com/view/VLAN_Set_Up
https://wiki.teltonika-networks.com/index.php?title=VLAN_Inter-Zone_accessibility_control_configuration_example

But apparently i’m missing something.

3

Hello,

First of all, both 192.168.1.1 and 192.168.2.1 are the RUT956 LAN IPs, so you will be able to ping them. However, if everything is configured appropriately, the devices on LAN2 should not be able reach devices in LAN1 (RUT956 lan is still pingable). Hence, could you try connecting one device via LAN (or WiFi assuming that WiFi is in LAN1 as per default settings) and another device to LAN2 and see if those devices can reach each other?

Also, please care with VLANs. It is usually advised to create new VLANs and avoid using VLAN IDs 1 and 2 as those are used by the system.

Let me know how it goes.

Kind Regards,

4

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