It's been a while since I commented in this thread because I've successfully replaced my ISP SFP GPON in one from FS.com but only now decided to make a video about it, to help others that might stumble upon this thread.

Here you go: https://youtu.be/Hi7JMTojT-4

Sure, here it is.

Thanks! I've already updated the IP-Phone-forum as well - plenty of people helped me out on this one so it's only fair I share the knowledge

Success! I opened the Fritzbox WAN tcpdump (which I got at fritz.box/html/capture.html) in Wireshark Located the SYN packet that originated in 192.168.47.2 and went to 192:168.47.1:8888 Followed the TCP stream (A function in Wireshark that extracts/focuses just on one TCP "conversation") E...

Yeah, I already reached out to CarlitoxxPro but they are currently in production (and got no ETA), so I figured I'd play with this one. The thing that bugs me is that I believe I'm really really close to nailing this one (sending the serial to Fritzbox's default SFP). Maybe I should bribe an AVM emp...

It does. If I move the SFP stick (which is a proper GPON, according to the specsheet I found online) into an unmanaged media converter, I can ping it: $ ping 192.168.47.1 PING 192.168.47.1 (192.168.47.1): 56 data bytes 64 bytes from 192.168.47.1: icmp_seq=0 ttl=64 time=0.867 ms 64 bytes from 192.168...

See what you get when you put the module in the Mikrotik router. Wait up to 2 minutes for results. [admin@MikroTik] > interface ethernet monitor sfp1 Already did that, the problem is that sfp-vendor-serial field is empty. I actually got a dump from Fritzbox's dmesg, and I can see there's a process ...

So, my ISP has provided me with a Fritzbox 5491, which I absolutely hate, so I've set myself on a mission to get rid of it. The only good part about it is that it comes with a proper SFP GPON module (Cigtech G-95SP), which can be pulled out of the device and inserted into my Mikrotik hex S. But it d...