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I also have redundant WAN at my house, slightly less sophisticated. Comcast (primary) and U-Verse (backup) on separate modems (wired only, no WiFi). When an out
by mansilladev 8y ago
I also have redundant WAN at my house, slightly less sophisticated. Comcast (primary) and U-Verse (backup) on separate modems (wired only, no WiFi). When an outage incident occurs, and it gets escalated, I received a page (iMessage from family member, "Dad, the WiFi is down!"). If I'm away from the NOC/DC, I call the DC remote hands support line (call onsite family member), and have them perform a hard cutover ("go to back of the device with the antenna thingies, disconnect the BLUE cable and plug in the YELLOW cable").
I do have a UPS on the modems and main access point.. but after reading this post, I may invest in diesel generator and a 5,000 gallon subterranean tank.
- segmondy 8y agoI have one too, it's my cell phone with unlimited data. The hot spot can last for 4 hrs.
- mansilladev 8y agoAh, yes. I call that my "metered tertiary" because my "unlimited plan" isn't unlimited when it comes to tethering.
- Klathmon 8y agoLook into modifying the TTL of your TCP requests. IIRC that's how at least one wireless ISP measures hotspot data different than from-phone data.
- cm2187 8y agoInteresting. Is there any other way? Like is there a flag in wireless data that tags tethered traffic? I was always curious of how an ISP can tell.
- mathieuh 8y agoThey could look for requests to things like Windows/MacOS update servers, URLs that phones will never be accessing basically.
- cm2187 8y agoBut that would allow them to tell that tethering is being used, not to measure the traffic to make it contribute to a cap.
- Klathmon 8y agoOn some Android devices they have the OS report it separately which is one reason they hate the ability for you to root your own device.
- lozaning 8y agoBack in my Nexus 5 days while on t-mobile all you had to do was tell the phone to use the same gateway IP for tethered traffic as mobile traffic. Quick ADB command later unlimited tethering.
- cat199 8y ago> Look into modifying the TTL of your TCP requests. so what, increment by 1?
- dalore 8y agoSame but it's very easy to bypass. Just install a proxy on your phone and set your system proxy to the phone in your OS. Then all the connections look like it comes from your phone as the PC is using the phone as a http proxy.
- kilroy123 8y agoYup, I do the same. I always also carry a big portable battery just in case. https://www.amazon.com/Omnicharge-Portable-Power-Bank-connectors/dp/B01NBJX99D https://www.amazon.com/Omnicharge-Portable-Power-Bank-connec...
- murukesh_s 8y agoYa same here, With my two additional power banks, which costed 20$ each, I am looking at 2 days of backup. And there is unlimited data (5gb/day/highspeed) that is enough for most uses. For additional usage if any, like a big Xcode update I can top up the data plan with additional 5gb for few dollars.
- reacharavindh 8y agoBut, can you toss the connections from both providers into a switch and make both avaialable for use all the time? Like a Active-active setup?? Any reason not to do that?
- mansilladev 8y agoAnd put my remote hands worker out of a job? No way.
- caust1c 8y agoYeah, but they must cost you a bundle!
- mansilladev 8y agoThat, my friend, is a sunk cost.
- paul_milovanov 8y agoSee: sunk cost fallacy
- cardiffspaceman 8y agoSo you are committed to paying for the remote hands and can't get out of it, or have already fully paid for lifetime support from the remote hands and can't get a refund :) That doesn't mean that there can't be cost savings from automation. For example if it costs X in lost business due to a misunderstanding by the remote hands that extends the outage unnecessarily, then a certain number of times avoiding that X cost would pay for the investment in automation. You pay the "sunk" and the new cost but you avoid unnecessary costs in the long run. It's all a matter of fully modeling your costs and benefits. Noting that certain costs are sunk is a partial model.
- TimTheTinker 8y agoFrom 5 minutes of Wikipedia reading, it appears this requires special support from the router to enable “sticky sessions” which prevent out-of-order packets; or, the device OS itself can “stripe” packets across NICs with special (extra) software to enable that.
- minhazm423 8y agoHey how can i learn more about all this? id love to understand whates going on, on the github page, im following a bit but still want a better understanding the way you and the rest of the commenters have, what are some good starting points? Any resources, books, links, youtubes especially, that you can point me to? Also, in his set up, theres no router? He says hes using a VM? What does that mean?
- gerdesj 8y agoIt is a complex subject. pfSense is Open Source and IMNSHO the best Swiss Army knife of routers/firewalls. Download this: https://www.pfsense.org/download/ https://www.pfsense.org/download/ Have a read of this: https://www.netgate.com/docs/pfsense/ https://www.netgate.com/docs/pfsense/ Hang out here: https://forum.netgate.com/ https://forum.netgate.com/ The VM is a router. Provided you ensure that traffic has to go through the VM and that the VM is able to route etc then it is a router 8) OP is using Linux whereas pfSense is FreeBSD based but pfSense is pretty much the only (near enough) turnkey product that does multi WAN and CARP properly. I should mention OPNsense as well here for fairness.
- ktta 8y agoI'm pretty sure this went over their head (don't intend to be mean). I believe they asked, what a VM actually stands for and what is means, rather than what it's for.
- gerdesj 8y agoFair enough. For a laugh I searched for "vm" and got a wikipedia article on virtual machines. GP did ask for rather a lot of clarification but then you (we) still have to allow for those times when someone just does not get it, despite everything. For example, I'm diving into Home Assistant, I don't think I'm daft but I ended up posting what turned out to be a really silly request for help because I was not a local and used to the scenery. I'd read all the docs, which I will soon subtly alter, but missed an implied (if you knew the system) point. How the heck do you describe what a VM router does, quickly? 8)
- chrissnell 8y agoOP is using CenturyLink fiber. I don't know if things have improved in the two years since I moved from Tacoma, WA where I had it, but it was dreadfully unreliable back in 2016. The unreliability wasn't caused by the fiber drop itself but rather, by a super shitty oversubscription issue up in their Tukwilla/Seattle exchange. Their IPv6 situation was even worse. They used 6rd and I swear, the translation box was probably a single router or Linux box with a 100 Mbit NIC in a rack somewhere. If you bothered enabling 6rd, every v6 site would be awfully slow. Even the browser projects to automate the selection of v6/v4 didn't help. When I finally moved away and cancelled the service, I mailed my modem back as directed. A few months later, they sent my account to a collections agency over the cost of a modem, which their system claimed to have not received. I spent hours on endless phone calls but ended up just paying them the $250 or whatever to save my credit and stop the madness. Seriously, they were the worst provider I ever had.
- an_account_name 8y agoMy experience with them in Seattle has been relatively positive; no IPv6 slowness, good and consistent throughout overall. Moving inside of Seattle was mindbogglingly difficult for some reason and involved a 3 hour phone call with 10+ transfers and several layers of escalation just to confirm they serviced my new house... but once that was out of the way no issues.
- ploxiln 8y agoWhen I moved between apartments in NYC, Time Warner Cable internal systems got very confused somehow. I had working internet at the new address, and was only being billed for the new address, but the old address was still under my name somehow, so the people who moved in could not get service. I was called by a TWC sales rep to ask me to call TWC support to clear this up for the new tenants. TWC support transferred me between accounts-management and network-tech multiple times, they were all confused. Took about 2 hours of active question/response. (I went through it to make sure I wouldn't get some mystery/impossible bill in the future.)
- StudentStuff 8y ago
- zeth___ 8y ago>I do have a UPS on the modems and main access point.. but after reading this post, I may invest in diesel generator and a 5,000 gallon subterranean tank. I'm not sure if that's a joke or not, mainly because after reading it I'm thinking "It's a stupid idea, but ... no it's a really stupid idea, but ..."
- subroutine 8y agoRead the post again, starting from the top, and consider that maybe the entire thing is satire.
- zeth___ 8y agoOh :(
- mirimir 8y ago> ... I may invest in diesel generator and a 5,000 gallon subterranean tank. I highly recommend propane-fueled gensets. Fuel storage is much less hassle, and propane doesn't go bad. You won't get the runtime of a huge diesel tank. But there's often little point in that, because an extended power outage will also take down the telecom infrastructure. As I recall, a ~7kW genset at ~70% capacity went through ~40kg propane per day. That was running well pump, sump pump, refrigerator, CFLs, microwave, fans, and a ~3kW UPS for several computers. Edit: Make sure to get a UPS that accepts genset power. That usually means full online aka double conversion. And everything must be grounded properly. Plus at least a manual transfer switch, to avoid injuring utility workers.
- driverdan 8y agoDiesel doesn't go bad, it can be stored for long periods of time. It's much cheaper to run a diesel generator than propane since diesel is much more energy dense but costs about the same.
- mirimir 8y agoHow long? For people with decent electrical service, you need the genset for at most several hours, maybe once or twice a year. Your UPS should handle ~30 minutes, which is enough for most interruptions. So your fuel supply needs to be stable on the order of decades. Is diesel stable on that scale? And sure, propane can leak. So you need to check every few months.
- technofiend 8y agoWell too late now but this is why you either hand it in to a human and get a receipt or you send it via certified or registered mail because that'll hold up in court. It's unfortunate anyone has to go through so much trouble to prove to Century Link what their inventory system is probably telling them anyway but it's always best to protect yourself.
- nvr219 8y agoI have redundant wireless at my house - fios for primary and t-mobile for backup. It's not a seamless handoff because I have to turn on the hotspot on my phone.
- phyller 8y agoWent to the comments to say exactly this. It's a much simpler setup!
- Arbalest 8y ago> 5,000 gallon subterranean tank. ...about 19,000 litres. That seems like tremendous overkill. Are you also planning on using that for home heating? If not, it seems like a very large maintenance burden for anything other than some kind of survival scenario.
- dewey 8y agoAre you sure it's not a joke? ;)
- mlatu 8y agoWhen would your onsite support assistant switch back to the blue cable? Can't you keep both connected to a router and have a script do the switching instead? Anyhow, still impressive.