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Inter VLAN Communication is not working

Hi

I am using Sophos XG115 as the firewall and i do have a layer 3 switch (Unifi 8 port POE 60W switch)  which leverages VLANS created & tagged at XG115. 

Users in different VLANs want to connect to devices (e.g. Network Printer and Network Attached Storage device [TerraMaster]) located in another VLAN. 

i have created a firewall rule which enables the communication between VLANS. I have also created DHCP records for each VLANs at XG115. 

I am able to PING to the gateway addresses of each VLAN. Unfortunately, the trace route keeps on failing at the gateway address of LAN network port at XG11 5when trying to reach to devices in different VLANs. 

Can someone help me in steps on what we should be adding or enabling to allow users in different VLANs to access the NAS and Printer?

Please note that users are on stand-alone Windows 10 devices. There is no active directory or LDAP integrations (i mean there is no Windows server). 

Below is a diagram of the network. An early response is highly appreciated. 



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  • Hello UJay,

    I do not understand your rules - especially the first one 40 to LAN. 

    However here some things you might try/correct:

    - Can you look on the CLI for dropped packets? Can you look in the logs for dropped packets. Create an explicit deny with all zones (not any) and switch on logging on the end of the rules.

    - There should be no nat between VLAN 1,2,3,4.You problably need to do NAT to access the internet.

    - Is there only one computer within the VLANs 10,20,30? Are you able to ping the devices within the individual VLANs (if there is only one you might consider to add a second device?

    - The switch might also be the reason for this behavior. In the configuration described here and in the answers it should leverage only layer 2 functionality ...

    - Are your devices answering to pings at all? Switch off the firewall / antivirus on the windows 10 computer and try again.

    Regards,
    BeEf

Reply
  • Hello UJay,

    I do not understand your rules - especially the first one 40 to LAN. 

    However here some things you might try/correct:

    - Can you look on the CLI for dropped packets? Can you look in the logs for dropped packets. Create an explicit deny with all zones (not any) and switch on logging on the end of the rules.

    - There should be no nat between VLAN 1,2,3,4.You problably need to do NAT to access the internet.

    - Is there only one computer within the VLANs 10,20,30? Are you able to ping the devices within the individual VLANs (if there is only one you might consider to add a second device?

    - The switch might also be the reason for this behavior. In the configuration described here and in the answers it should leverage only layer 2 functionality ...

    - Are your devices answering to pings at all? Switch off the firewall / antivirus on the windows 10 computer and try again.

    Regards,
    BeEf

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