T_X3d ago
So, the new fiber internet was supposed to be enabled last week. But the Fritz!box says: WAN connected, but no internet.
I then had a look with @wireshark: I'm seeing a lot of #ARP from ~2.5k fritz boxes, on #VLAN s 850 and 900. If I set these VLANs on my laptop I do get internet access. This does not look right to me.
As no support was available on Friday at 5pm anymore I left a message with my findings on our ISP's fault hotline, but haven't heard back yet.
Show threadneocturne3d ago
@T_X Did they accidentally plug you into a trunk/uplink port xD
Show threadT_X
@neocturne it kind of looks like it. I don't dare to validate that in practice though :D. But with all this ARP, I could imagine that one could do quite some mischief with/like that. I would be kind of curious to see the initial reaction of the person listening to the recorded message I left on their fault hotline. :D
Apr 12 at 11:41amWeb
Show threadT_X3d ago
@neocturne also, yes, we are installing our own fiber, too. But not *that* much fiber to be a viable upstream :D.