Quote:
Originally Posted by qasdfdsaq
Indeed. Ignition is usually right about these things but he's so far not said anything to explain the clear discrepancies between his suggestion of PPPoE to the CMTS and your logs showing PPPoL2TP to some unknown location.
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Not this time.
Even though it's a crazy architecture they wanted to use the same one for both xDSL and business cable, so every business modem uses an L2TP tunnel to a PPP service module, these also terminate L2TP from BT, and from there get encapsulated again and terminate on the same BAMs/BRAS as the Virgin National service.
No-one could give a reason why it's done that way beyond a comment about the CMTS
. It's completely contrary to the 'standard' methods which you can find plenty of documentation on on vendor websites.
Name: oxfd-pppsm-1.network.virginmedia.net
Address: 194.145.149.115
Name: oxfd-bam-1.network.virginmedia.net
Address: 194.145.148.252
Seems to be a PPPSM in each regional hubsite along with some of the core sites, and BAMs scattered around.
I reckon if people do traceroutes and take note of which site their core router is at, and from there do an nslookup for a matching PPPSM to that core they might well be able to bring up an L2TP session.