OpenVPN TAP client communication issue

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  • blackslash
    Junior Member
    • Dec 2024
    • 1

    OpenVPN TAP client communication issue

    Hi,

    I just configured an OpenVPN TAP with remote access SSL/TLS instance on a pfSense CE firewall. I have Teltonika device as the client.
    Have configured all the necessary firewall rules in place, and Teltonika establishes the connection and the clients behind the Teltonika receives an IP address from pfSense local LAN.
    From the clients behind Teltonika I can ping the gateway (pfsense) but cannot ping or communicate with any other device that is on the pfSense LAN. pfsense can ping back all the clients behind the Teltonika as well.

    Been trying to figure out the cause but haven't had any luck at all.

    Clients on the pfsense LAN can communicate with each other.
    Clients behind Teltonika, once vpn estblishes and the devices receive an IP they can communicate with one another too.
    Problem is when client behind Teltonika tries to reach a client behind pfsense.

    Can confirm that all necessary rules are in place.
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