DSL Failover on wAP LTE kit

RouterOS General
1

Good morning,
I want to ask if this scenario is possible with the wAP LTE kit router, without a manged switch (no VLANs) and without using the wifi connection:

  • The wAP LTE kit is connected to the ethernet switch and has LTE connectivity active
  • A DSL modem is connected to the ethernet switch
  • The client that needs internet connectivity is also connected to the ethernet switch
    Is it possible to configure the wAP LTE kit to give to the client internet connectivity with the LTE modem and failover to the the external DSL modem?

Thank you
Matteo

2

It is possible but it requires specific settings on the modem/router which may not be available.

If the ISP connects you using PPPoE and you can place the modem into bridge mode, you can set up the PPPoE client on the wAP LTE, but you want to prevent any other than PPPoE frames from being sent to the ISP, to save your bandwidth and privacy, so you need the modem in bridge mode to support traffic filtering by ethertype.

If the ISP connects you using DHCP on the modem’s WAN, or if bridge mode is not available at the modem, or if filtering by ethertype is not possible, you need to keep the modem in routing mode, but you have to disable its DHCP server. Then, you have to attach static IP addresses from two distinct subnets to the ether1 of the wAP - one used to talk to the modem, and another one to talk to the PCs. The DHCP server on the wAP would be attached to the second one.

3

Thank you