On Jun 22, 2014, at 20:41 , Laszlo Hanyecz <las...@heliacal.net> wrote:
> > On Jun 23, 2014, at 3:32 AM, "Kalnozols, Andris" <and...@hpl.hp.com> wrote: > >> >> On 6/22/2014 7:41 PM, Frank Bulk wrote: >>> Did they ever explain why? Did the SMC function as a router, and act as the >>> customer side of a stub network that allowed that /29 to hang off the >>> router? If that was the case, and the Motorola D3 modem was L2-only, that >>> might explain the change in capability. >> > > The Comcast business SMC gateway speaks RIP to make the routed /29 work.. in > theory it could be put into bridge mode and you can do the RIP yourself but > they don't support that configuration (you'd need the key to configure it > successfully and they didn't want to do when I asked). If you poke around in > the web UI, it does support IPv6 in some form, but it doesn't seem to be > active for me. > > If you don't have a static IP block from them and thus don't have the need to > use RIP you can just use a regular DOCSIS 3 cable modem and get IPv6, but you > only get one IPv4 number that way. In my experience, if you put a switch behind the modem (not a router), you can get as many IPv4 numbers as you have devices attached to the switch on Business Class. On residential, you're limited to one, but I have gotten multiples on business class. Owen