The router itself and clients behind it cannot traceroute ipv4 correctly. It will show the X750 as first hop, everything else is hidden and the second hop will be the final destination.
i.e.
root@atlas-poc-opi2:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
1 console.gl-inet.com (192.168.8.1) 0.527 ms 0.665 ms 0.716 ms
2 one.one.one.one (1.1.1.1) 49.662 ms 49.653 ms 50.325 ms
IPv6 works normally…
I do NOT spoof TTL on LTE WAN.
Any ideas ?