Ideally when you plug into a cable modem, it comes up, and passes your ethernet to the cmts in a bridge, lets one mac address dhcp/arp, and things work. It learns that one ip/mac, and disallows any other mac. No security, nat, nothing, just real dumb dhcp + default routing with a public ip. Routers/firewalls try to NAT you, thus double NAT if using a router behind it.
CL sells you a dsl modem/router that does your local security whether you want it or not, full router/nat/firewall, and probably spyware. Making it a modem is possible, but takes work, and your firewall has to support PPPoE (not all can/do). Last time I touched a combo Cox router/modem, I didn't see any way to do so. I told them to buy a real modem, and that worked with their belkin/cisco/linksys/netgear they had. If your "modem" mentions wifi, it's a router/firewall, not a modem. Not all are clear about this, as they dumb it down for consumers, but an important point. -mb On Mon, May 4, 2020 at 1:53 PM Stephen Partington via PLUG-discuss < plug-discuss@lists.phxlinux.org> wrote: > I Owned a Nighthawk Router/Modem combo, The way that Netgear handled that > is that the modem was hard-wired to a bridge on the router side. and > technically you could see it as a separate device in the router configs if > you rooted around enough. but the modem side was just a modem. > > On Mon, May 4, 2020 at 11:03 AM Michael Butash via PLUG-discuss < > plug-discuss@lists.phxlinux.org> wrote: > >> Cox modems *are* bridges first and foremost typically, unless you get a >> bundled router/modem, which is only what CenturyLink sells. If you got a >> "router/modem" combo, just buy a modem-only device for a dumb bridge and >> simple ethernet for a public ip. I recommend staying with an arris cable >> modem, originally motorola, they basically developed cable modem docsis, >> and are always the best. >> >> I moved from Cox to CL when Cox started adding a usage cap, and that was >> new to me to get my Fortinet firewall online with CL and their DSL doing >> PPPOE. I've seen the router/cable modem combo boxes later, but never owned >> one as I always have my own router/firewall. >> >> -mb >> >> >> On Mon, May 4, 2020 at 8:36 AM Donald Mac McCarthy <m...@oscontext.com> >> wrote: >> >>> Will Cox allow for a bridge/virtual bridge mode? Xfinity does, which >>> allows you to put in a firewall, and use the modem only as a gateway, >>> therefore preventing a double NAT situation. Never lived in a Cox area >>> before, and currently ride CL fiber. >>> >>> Mac >>> >>> Michael Butash via PLUG-discuss wrote on 5/3/20 2:00 PM: >>> >>> Cox modems will learn and allow only 1 mac at a time (unless business is >>> set to allow more, but not on residential). If switching out firewalls, I >>> 99% of time reboot the modem first and foremost. >>> >>> -mb >>> >>> On Sun, May 3, 2020 at 12:08 PM Snyder, Alexander J via PLUG-discuss < >>> plug-discuss@lists.phxlinux.org> wrote: >>> >>>> I got it working. >>>> >>>> I assigned the SFP+ port as my LAN and assigned it the 10.x.x.x/16 >>>> network. Then I had to call COX and list the WAN Mac address with them. >>>> Upon doing so I was able to reach external sites, and all downstream >>>> devices started coming alive! >>>> >>>> Thanks for all the suggestions and help! >>>> >>>> Thanks, >>>> Alexander >>>> >>>> Sent from my Galaxy S10+ >>>> >>>> On Sun, May 3, 2020, 03:14 Herminio Hernandez, Jr. via PLUG-discuss < >>>> plug-discuss@lists.phxlinux.org> wrote: >>>> >>>>> Can you login to the FW via the LAN interface? Can you ping the FW >>>>> LAN interface? Check the routing and NAT policy on the FW. All outbound >>>>> traffic should NAT to the FW WAN interface and there should be a default ( >>>>> 0.0.0.0/0) route to the internet. >>>>> >>>>> On Sat, May 2, 2020 at 7:27 PM Seabass via PLUG-discuss < >>>>> plug-discuss@lists.phxlinux.org> wrote: >>>>> >>>>>> I'm with Mac, I think it is not the firewall, but if you have the >>>>>> ability to plug it into a display with a keyboard, you can use that for >>>>>> configuration and modify a different device at the same time. >>>>>> >>>>>> Makes it easier to troubleshoot by giving you the ability to >>>>>> configure your pfSense ports at the same time. >>>>>> >>>>>> >>>>>> >>>>>> Message: 2 >>>>>> Date: Sat, 2 May 2020 09:04:35 -0700 >>>>>> From: Donald Mac McCarthy <m...@oscontext.com> >>>>>> To: "Snyder, Alexander J via PLUG-discuss" >>>>>> <plug-discuss@lists.phxlinux.org> >>>>>> Subject: Re: pfSense + Ubiquity >>>>>> Message-ID: <18adfa38-3e72-7b0a-e31a-1ddf175d7...@oscontext.com> >>>>>> Content-Type: text/plain; charset="utf-8" >>>>>> >>>>>> I can help - but I am unavailable to do so until tomorrow. >>>>>> >>>>>> Make sure there are not any thing other than default VLANs on the >>>>>> interfaces to start with. Ubiquiti is famous for not havinght eSFP+ >>>>>> ports active in the default configuration, and I believe the switch >>>>>> has >>>>>> all the ports to shutdown on default config as well. >>>>>> >>>>>> I think it is the switch not passing traffic through - no the >>>>>> firewall. >>>>>> >>>>>> Mac >>>>>> Snyder, Alexander J via PLUG-discuss wrote on 5/2/20 8:53 AM: >>>>>> > Does anyone out there have experience with pfSence and Ubiquity >>>>>> switches? >>>>>> > >>>>>> > I have zero with either but that didn't stop me from buying both >>>>>> .... >>>>>> > how hard could it be?! LOL. >>>>>> > >>>>>> > I bought a Negate XG-1537-1U. I bought a Unifi Pro 24 PoE switch. >>>>>> > >>>>>> > I can configure the FW immediately after >>>>>> > firstboot/restore-default-configs, but only if i set the LAN >>>>>> interface >>>>>> > to be the cable that goes directly to my laptop. That's great, but >>>>>> > that does shit for the downstream switch. >>>>>> > >>>>>> > I have a 10GB SFP+ Port that I want to configure as the downstream >>>>>> > port to ubiquity, but any configuration other than mentioned above >>>>>> > fails .... and I'm now on my 12th "Reset To Factory Defaults" ... >>>>>> any >>>>>> > help on this would be greatly appreciated! >>>>>> > >>>>>> > Thanks, >>>>>> > Alexander >>>>>> > >>>>>> > Sent from my Galaxy S10+ >>>>>> > >>>>>> > >>>>>> > --------------------------------------------------- >>>>>> > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>>> > To subscribe, unsubscribe, or to change your mail settings: >>>>>> > https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>>>> >>>>>> -- >>>>>> Donald "Mac" McCarthy >>>>>> Director, Field Operations >>>>>> Open Source Context >>>>>> +1.602.584.4445 >>>>>> m...@oscontext.com >>>>>> https://oscontext.com >>>>>> -------------- next part -------------- >>>>>> An HTML attachment was scrubbed... >>>>>> URL: < >>>>>> http://lists.phxlinux.org/pipermail/plug-discuss/attachments/20200502/aeab14b4/attachment-0001.html >>>>>> > >>>>>> >>>>>> ------------------------------ >>>>>> >>>>>> Subject: Digest Footer >>>>>> >>>>>> _______________________________________________ >>>>>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>>> To subscribe, unsubscribe, or to change your mail settings: >>>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>>>> >>>>>> >>>>>> ------------------------------ >>>>>> >>>>>> End of PLUG-discuss Digest, Vol 179, Issue 2 >>>>>> ******************************************** >>>>>> >>>>>> >>>>>> >>>>>> --------------------------------------------------- >>>>>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>>> To subscribe, unsubscribe, or to change your mail settings: >>>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>>> >>>>> --------------------------------------------------- >>>>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>> To subscribe, unsubscribe, or to change your mail settings: >>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>> >>>> --------------------------------------------------- >>>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>> To subscribe, unsubscribe, or to change your mail settings: >>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>> >>> >>> >>> --------------------------------------------------- >>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>> To subscribe, unsubscribe, or to change your mail >>> settings:https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>> >>> >>> -- >>> Donald "Mac" McCarthy >>> Director, Field Operations >>> Open Source Context >>> +1.602.584.4445 >>> m...@oscontext.com >>> https://oscontext.com >>> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> https://lists.phxlinux.org/mailman/listinfo/plug-discuss > > > > -- > A mouse trap, placed on top of your alarm clock, will prevent you from > rolling over and going back to sleep after you hit the snooze button. > > Stephen > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss
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