Hello, I’m trying to get OSPF over Ipsec working on Teltonika, but can’t find the setting where to assign IP for the tunnel interface to actually get the two devices properly talking. Could someone please point me to the correct option
Good afternoon,
Good afternoon,
Potential solution for your issue :
Configure the IPsec tunnel between the Teltonika devices and ensure it is up and running.
Create a GRE tunnel interface on top of the IPsec tunnel (in Services → VPN → GRE).
Assign an IP address and subnet mask to the GRE tunnel interface (e.g., 172.16.1.1/30 on one side and 172.16.1.2/30 on the other).
Configure OSPF to run on the GRE tunnel interface, treating it like any other physical or VLAN interface.
Add the GRE tunnel subnet to the OSPF network configuration so OSPF knows to advertise and form adjacencies over this link.
Make sure MTU settings match on both ends to avoid OSPF adjacency issues.
This method forces OSPF to operate in unicast mode over the GRE tunnel, which simplifies OSPF operation over IPsec since IPsec tunnels do not behave like regular broadcast interfaces.
Regards,
Arturas