Also remind me, if you all would be so kind: Did the OP say (s)he is on
ADSL ?
And sincere apologies for drifting off topic and hijacking this thread with the following. Could perhaps split this off into a new thread?
And what is the commonest protocol stack for VDSL2 / FTTC ? With BT/OR ? My guess: IP over PPP over PPPoE over ethernet incl VLAN (over x or nothing?) over PTM over VDSL2. (Apologies for revisiting this topic, for the nth time; I looked at this
old post that I wrote but haven’t found all the answers yet.)
If I got any of that right, is it the case then that BT/OR’s various boxes don’t necessarily care about PPP being present or absent because a CPE always speaks ethernet, so the system can rely on that being always being present, and the system terminates an upstream link from some CPE using ethernet at some destination MAC address belonging to a BRAS or similar box? So some middle boxes don’t care whether PPP is being used or not? So is it fair to say that Ethernet is being used as a L2-like (ie link-layer) replacement for the true L2 that is PPP?
I saw a picture of a router’s UI with a config field that mentioned an interface’s optional MAC address definition "for spoofing", meaning I take it that some horrid ISP is trying to lock the service to one particular box, and never mind the hell for the sysadmin that comes with saved config info and equipment swap-outs.