MikroTik Failover configuration

RouterOS Beginner Basics
1

Hello,

i am writing this post to find out about possibilities of configuration. I want to buy 2 Mikrotik RB760iGS hEX routers for two stores, and configure them site to site VPN connection.
There is a permanent IP address in both locations. My question is about failover configuration in the absence of a wan link available. For this purpose I would like to use USB LTE modem, can you recommend one? Whether script or routing can be set to automatically connect via LTE, and that an uninterrupted vpn connection remain?

Thank you for your help.

2

To be clear do you want
a. router with usb port for LTE USB modem
b. will get a separate LTE modem to plug into router over ethernet.

3

I want router with USB port in which will be able to stick USB modem LTE, Huawei etc.
The main link WAN port of provider, and failover by modem LTE.

4

https://wiki.mikrotik.com/wiki/Manual:Peripherals

5

Thank you for your reply. Does anyone know about configuration failover? The server is in location number 1, the point is that in case of failure of WAN - a VPN connection was available.

6

You can use Netwatch to do that.

/tool netwatch
add down-script="/ip route disable [find comment=your_default_route_link1]" host=8.8.4.4 \
    interval=15s up-script="/ip route enable [find comment=your_default_route_link1]"
add down-script="/ip route disable [find comment=your_default_route_link2]" host=8.8.8.8 \
    interval=15s up-script="/ip route enable [find comment=your_default_route_link2]"
    
/ip route
add comment="Link test route" distance=1 dst-address=8.8.4.4/32 \
    gateway=your_link1
add comment="Link test route 2" distance=1 dst-address=8.8.8.8/32 \
     gateway=your_link2
7

Here is another option…
https://mikrotik.com/product/hap_ac3_lte6_kit

As far as failover are you saying that you currently have a VPN setup between the offices on the main ISP and you want to ensure that a VPN is available on the backup LTE connection?
It would not be very fast !!!