to elaborate on Valdis' reply, stick a fork in pptp, it is done. https://www.cloudcracker.com/blog/2012/07/29/cracking-ms-chap-v2/
On Tue, Jul 31, 2012 at 3:13 PM, iptech <ipt...@northrock.bm> wrote: > Hey Ricky, > > Yes that is the exact setup, the cableco bring the customer to us via L2TP, > and now want to do PPTP only. > > I will keep digging on the ARRIS, which I have been told is a C4 system. > Although their website doesnt show much tech specs. > > They are pushing for the L3 option since their CMTS will now be a hop in the > path between the customer and us, instead of L2 transparent. > > Suggestions? > > Thanks, > > > On 7/31/2012 5:19 PM, Ricky Beam wrote: >> >> On Mon, 30 Jul 2012 08:33:51 -0400, iptech <ipt...@northrock.bm> wrote: >>> >>> 3.0 compliant setup, and this standard no longer supports PPPoE via L2TP, >>> and can now only offer PPTP for terminating with us. >> >> >> As I recall from my reading of "the standard", there's nothing in there to >> prevent any tunneling on top of the DOCSIS bridged ethernet. >> >> I suspect this is not a "standard" problem but an ISP problem... their new >> hardware doesn't support PPPoE/L2TP, it's an additional license, or they >> don't know how (or unwilling) to configure it. >> >> (I'm assuming the PPPoE is between you and the customer, and L2TP is >> between your network and the cable network. i.e. L2TP is how your customers >> are brought to you from the cable network.) >> >> I have no documentation on ARRIS either, so I don't know what they >> can/cannot do. >> > > -- Kyle Creyts Information Assurance Professional BSidesDetroit Organizer
