Re: [PLUG] New Comcast wireless modem with old Buffalo wireless router

So a few things;

The Cocmast XB3 is required because it's part of Cocmast's new IPTV initiative. It's a fully integrated modem, WAP, and router in one. While you can disable the customer-facing Wifi, you do not have root on the device and cannot power off the wifi radios, this is by design. It'll continue broadcasting the "Xfinity_Free_Wifi" or whatever SSID. On the other hand, you aren't liable for what happens on that SSID, and it doesn't count against your transfer cap nor speed caps (normally). You can't fully disable the router part, you *might* be able to forward all ports by default to your Buffalo, but you will always be double-NATed. Also, any ports that Cocmast grabs on the XB3 will *not* be forwarded to the Buffalo, and you don't have any control over that.

Sorry for the bad news. Also sorry I don't have any guides to do what you're trying, but the XB3 rollout was only just starting when I left. Support might be able to help, but good luck.

On Sun, Dec 17, 2017 at 8:23 PM, Walt Mankowski <waltman@pobox.com> wrote:

Cool. Hopefully those will be obvious settings once I hook it up?

On Sun, Dec 17, 2017 at 08:18:13PM -0500, Eric Lucas wrote:
> I always disable the wireless in the (vendor-provided) router.
> If possible, just configure it to pass-through the external IP to the
> LAN network interface on the router and then just configure your
> Buffalo WAN to use that.
>
> I've done that for both Comcast and Verizon in years past.
>
> Eric
>
> On Sun, Dec 17, 2017 at 7:36 PM, Walt Mankowski <waltman@pobox.com> wrote:
>
> > I've been a Comcast internet customer since 2012. Recently they told
> > me my old modem will longer be supported after January, and a few days
> > ago they sent me a brand new XB3 modem.
> >
> > Currently I've got my old modem plugged into a Buffalo WZR-600DHP
> > AirStation running DD-WRT. I've got a desktop and a laptop plugged
> > into its RJ-45 ports, and it also handles a bunch of wireless devices.
> >
> > I'm concerned because this new modem is also a wireless router. If I
> > just replace the old modem with the new one, will everything still
> > work? Or do I need to consolidate and move all my settings from the
> > Buffalo router onto the Comcast device? Has anyone tried this before?
> > I'm also concerned that if I mess anything up, the old modem will have
> > been deactivated and I won't easily be able to fall back once I start.
> >
> > Thanks.
> >
> > Walt
> >
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> ___________________________________________________________________________
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> Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
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___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
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