Anyone , any clues ?

Passthrough is not working yet. As said works fine withpc direct connected to lhg lte but not when attached to my hex host as wan. Might be messed up by mangle rules, as rules for this WAN have to point to a named interface versus an ip address. Given the passthrough ip is dynamic. Could this be a reason? Worst case i’ll just disable all rules and start from there.

I dont really get why use VLANs for a simple passthrough...

The reason his setup is not working is most likely to a missconfiguration...

I'm also stuck a bit with the doubel NAT issue.

I'm working my way trough the setup with a few questions remaining:
1/ on the LTE assume NAT: off,

2/ in the LTE APN setup: do NOT add default route.

3/ Route list now shows ether 1 reachable on both the the WAN (4g) dynamic address and the local ether1 address.

4/ must the ether 1 address on the LTE be in a different range as the Host hex ? (Host hex has 192.168.88.0 and LTE now has 192.168.77.0)

5 Assume on the host hex the DHCP client needs to have default route added ?

6/ in my mangle rules on hex I'm now not able to add a addressed route by IP number for the LTE wan (as dynamic). I need to input an interface name. This is not advised. Is this an issue.

• Bandwidth-based load-balancing with failover. This presentation also covers Mangle.
  This was presented at the MUM (MikroTik User Meeting) in New Orelans, USA.
  Tomas Kirnak - YouTube: https://www.youtube.com/watch?v=67Dna_ffCvc&t=1s
  http://mum.mikrotik.com/presentations/US12/tomas.pdf

7/ Are the filter rules on the LTE still of any use ? Imagine the filtering is now all done in the hex.

Only thing to my concern is my routing with respect to mangling ; on the hex which was setup with static ip's. Given the passthrough the relevant interface (4G) now has a dynamic address. I can't put a distance on this dynamic address. The static route however with the interface name still exists besides the dynamic route with dynamic IP.
Haven't figured out how this affects my bandwith balancing= if it still works,

/routing filter add chain=dynamic-in distance=2 prefix=0.0.0.0 prefix-length=0 scope=30 set-disabled=yes target-scope=10

Hi SiB I've tried to play with the filter but don't quite understand what it actually does to get my dynamic gateway to distance 2 (which is needed for mangling).
Should I see any changes happening in the route list?
Pls advise.

Given the passthrough the relevant interface (4G) now has a dynamic address. I can't put a distance on this dynamic address.

Bandwidth-based load-balancing with failover. This presentation also covers Mangle.
This was presented at the MUM (MikroTik User Meeting) in New Orelans, USA.
Tomas Kirnak - YouTube: https://www.youtube.com/watch?v=67Dna_ffCvc&t=1s
http://mum.mikrotik.com/presentations/US12/tomas.pdf

. At LHGR R the best ways is use passthrough mode and do all MultiWan on main router.

how use passtrough with LHG R LTE to make load balancing ?

In PCC load balancing :
You have to make route to ping wan gateway but how make that if your gateway is dynamic and trough CGNAT (lte) ?

Actualy i can use PCC load balancing with fail over only with double NAT ?
ISP 1 => ROUTER 1 => 192.168.88.0/24 to ROUTER LOAD BALANCING
ISP 2 => ROUTER 2 => 192.168.1.0/24 to ROUTER LOAD BALANCING

not sur to be clear in my question ...

I don't know make routing filter...

• directly in dhcp-client settings like /ip dhcp-client set add-default-route=yes default-route-distance=2
• Automatical created Route can be modify by /routing filter add chain=dynamic-in distance=2 prefix=0.0.0.0 prefix-length=0 scope=30 target-scope=10 set-disabled=no set-routing-mark=RouteTable--WANx

Thanks Sib, but i understand i'm very bad to explain the situation.
I do this drawing in attach file (I hope it's better to understand what i want)
Thanks again for your help

i think my problem is on route :
i try to replace ip gateway in route list by "wan1" but internet works very slowly (sometime not) whith lots of page error on internet
Dst Adress : 0.0.0.0/0 Gateway wan1....

{
    :local routemark "to-wan2"
    :local count [/ip route print count-only where comment=$routemark]
    :if ($bound=1) do={
        :if ($count = 0) do={
            /ip route add gateway=$"gateway-address" comment=$routemark routing-mark=$routemark
        } else={
            :if ($count = 1) do={
                :local test [/ip route find where comment=$routemark]
                :if ([/ip route get $test gateway] != $"gateway-address") do={
                    /ip route set $test gateway=$"gateway-address"
                }
            } else={
                :error "Multiple routes found"
            }
        }
    } else={
        /ip route remove [find comment=$routemark]
    }
}

-:local routemark "to-wan2"
+:local routemark "to-wan1"