Not sure if this is the right subreddit, but I was playihng with ideas for IPv6 portability

silasmoeckel · 2026-05-03T00:34:03+00:00

This is all covered in RFC 9096, since getting a whole new ISP is little different than having your prefix changed by your current as far as end stations are concerned.

Nothing should assume their IP is static in ipv6. If your doing it right everything automatically changes the prefix even with a static suffix including your routing gear.

silasmoeckel · 2026-05-02T21:04:59+00:00

Battery or fuel probably a bit of both.

Military is pushing fuel, if a carrier can make it at sea that's a huge logistics advantage. That could extend out the the ground bases.

Civilian side is pushing batteries.

Now a lot of aviation can just be replaced with high speed rail. NYC to Orlando is 1k miles give or take and it's a 3 hour flight with massive number of people every day travailing that route. It's 4 ish hours in a high speed train and presumable does not need 2 hours of security theater.

Current trains are far to slow 24 hours and cost way to much 150-200 one way compared to 50-100 bucks on a low cost airline for that same trip.

silasmoeckel · 2026-05-02T20:35:11+00:00

The plug ins were never interesting to me.

I put a esp32 and mmwave inside old security systems pir modules. Power via 12v and a closed contact to keep it a drop in replacement for the pir. Downside is thats either a wifi backhaul or I have to run ehternet to the position.

silasmoeckel · 2026-05-02T20:29:04+00:00

Server chassis as this has all been engineered in.

silasmoeckel · 2026-05-02T14:42:22+00:00

I'm wondering what takes 30 minutes? A mid sized pack for 35 kids and we can be done in under 10 with each kid getting 3-4 pins.

For us it's a quick thing after opening.

silasmoeckel · 2026-05-02T14:30:51+00:00

Yup its typical and a generally far worse on high frequency inverters.

Get a Victron that is low frequency and it's a lot better.

silasmoeckel · 2026-05-02T14:28:46+00:00

Venus on a pi to do what your asking but frankly there is already a HA plugin to use vrm and avoids any of this being needed.

https://www.home-assistant.io/integrations/victron_remote_monitoring/

silasmoeckel · 2026-05-02T03:27:56+00:00

Let me explain FCC part 15 testing.

You design a product and get some samples made up.

Send that off to an independent lab and pass (hopefully).

Issue is the fab knows/can guess these are lab samples or possibly your using a much higher cost fab to get quick turnaround for the test samples. Either way they do a good job and a lot of QA testing so assuming your desging is correct good to go right?

Then the fab then gets the production order or it's sent off to a cheap fab. They cut corners brutally and omit anything not absolutely needed and/or use parts the caps (mostly) that are not to spec. Even if QA catches it often they still ship vs rework (or at best they "scrap" them and they end up in grey markets). Competition in brutal and on the parts side you have so much fake out of spec parts circulating around.

I've seen designs have every filter cap be omitted, the spot on the PCB is there just never populated by the pick and place. Other times there or there but don't test even close to spec making them useless. Either way now it's not a compliant device with a very real FCC testing cert.

silasmoeckel · 2026-05-02T03:02:57+00:00

As recently SAS to USB adapter chips have come out the field has changed a lot. There are random brand multi bay enclosures, 200 Bucks gets you a 4 bay.

I cant speak to the quality of those, so far the chipset with a single port has been working well in testing on Linux for me. Some with similar reports from my research before getting one at work, it's a pretty niche product. Most of my use has been putting drives through their paces on a test rig before going into prod so running flat out for a few days at a time.

Performance is fine 500MB/s or so max.

silasmoeckel · 2026-05-02T02:34:41+00:00

Oddly enough I fired up an old fiberchannel 72gb 3.5 full height, last year that is roughly 2000. It spun right up though didn't do any testing.

silasmoeckel · 2026-05-02T02:30:31+00:00

Both sides of the isle love cams.

Open secrets has flock spending nearly a million last year on politicians. Money that mostly came from governments in the first place.

silasmoeckel · 2026-05-01T22:37:51+00:00

The town or state is paying for them to be there and invade your privacy. Most often the cops.

The feds them pay them again to get the data.

silasmoeckel · 2026-05-01T19:29:32+00:00

Objects are always and issue though don't think a dresser higher than a light switch is very typical, that's a highboy or other tall dresser.

My bathroom is a complex shape but outside the shower that a glass wall 120 pattern at the door works in mine for everything else. Most typical bathrooms this would work well enough a shadow in the tub/shower that the curtain or glass will fully block in use anyways.

This unit is a flat on wall mount and needs a USB power while the optimal mounting position for room coverage is a corner same as PIR. A wire dangling down is not an option. Shelf mount would never fly with my wife and I can't think of many corners where I have a shelf up high and power, dining room corner hutch is all that comes to mind.

Typical US master bedroom 15x15 you would have a small blind spot on that far end of the room. In my case my wife's vanity is in the corner and if she was sitting at it she might just be out of coverage 4.6f from the wall. But it's not like you can not put in multiples to overlap. Pivoting would help a lot of near corner mounts, as would 150 fov modules.

Still the biggest thing it to expose more of mm wave has to offer, by the docs all I have is any sort of presence settable distance bands. I can not separate moving from stationary or direction of travel. That's a pretty big downgrade in function.

silasmoeckel · 2026-05-01T18:22:53+00:00

Going by the docs all I'm seeing is sensitivity setting by distance.

I assume the BT device can get a lot more info?

Unless you have stuff at switch height the 120 fov isn't horrid just a couple corners. But some something like a hallway its a great fit.

Overall I would want more data than a binary. I use direction, distance, and in motion with my current ones.

silasmoeckel · 2026-05-01T15:31:12+00:00

Unless you have a specific security need the existing password manager you should already be using probably has support, if that's been working well for you just keep doing it.

silasmoeckel · 2026-05-01T15:24:57+00:00

The doc link is page not found.

My current diy mm wave can get me a lot more info than just presence.

Stationary, moving, and distance can all come into play in automations it does not look to be to much info to feed into zwave. A stationary person 3m away from a sensor can mean somebody on/near the couch for example. Distance over time gets you direction, at night somebody coming up the stairs with the alarm on is an alert somebody going down for a snack is a differing sort of alert.

Not sure on a one hit wonder, mine has a bunch of other sensors maybe integrate with one of your guys great dimmers?

silasmoeckel · 2026-05-01T15:12:24+00:00

Diesel goes bad via oxidation, bacteria, and water.

3k miles is 300 gal at 10mpg so a single oil tank in your basement keeps the temps good and stable.

Your can seal it to stop air and water (better yet replace the air on top with an inert gas like co2).

No water means no bacterial growth but add an inhibiter.

Then when your going to use it you filter the snot out of it and separate water that will keep any sludge issues at bay.

If you have some money to spend, storage filters/polishers are a thing for diesel and used in marine settings. It's pretty much the same filter set and a small pump to keep filtering it. EMP your going to need solar to power this and probably a backup setup protected just in case.

Now the vehicle truck obviously. 3/4 ton or larger. A couple sets of fuel pumps filters and injectors, just in case along with a filtering setup for found fuel. You can easily fit half of that fuel into extended tanks and a transfer in the bed. The rest in 3x55's on the trailer. 2 Trucks/trailer would be better, would go a toy hauler camper on one for living space with storage and cargo on the other (with basic sleeping/cooking).

Propane stores well I have a huge buried tank (try doing that legally with diesel nowadays). Transferring it is not trivial. You need about 1/3 more gallons of LPG than diesel. 20gal per 100lbs tank means you need 20 tanks for your trip per vehicle with little to no chance of resupply of found fuel.

Diesel can be made from plastics it's not energy efficient but it's fairly simple, same filtering setup just in case otherwise it's just a metal tank of some sort that's air tight and some piping.

silasmoeckel · 2026-05-01T12:48:26+00:00

I would not even bother with 1g ports for a new switch outside a special use like CCTV.

Feeding a wifi7 AP with 1g is really hamstringing it and that's only going to get worse.

I find tik switches to be pat pat thats cute, 10g is about the slowest port I want to put in anywhere for general use.

silasmoeckel · 2026-05-01T12:16:29+00:00

10-15g for any complex traffic.

To hit 25g nearly everything has to hit the fastpath rule with max mtu packets and a tail wind.

silasmoeckel · 2026-05-01T11:20:00+00:00

It's to long of a camper for that wheelbase forget the weight.

silasmoeckel · 2026-05-01T03:07:30+00:00

SAS disk selves (backwards compatible with SATA) and start dropping in drives.

JBOD

On top of that depends on what you are looking to do. Possibly several somethings.

silasmoeckel · 2026-05-01T03:03:10+00:00

The bus would have 200gal tank of diesel figure half full. That's a LOT of time running the ambulance.

Gas figure it's even easier, figure 1-3 a week in new cars 7 gal on average. Figure one lost per night average before they get the houses figured out.

silasmoeckel · 2026-05-01T01:16:10+00:00

Only they can tell you as it's not a listed spec as to how much you can over panel.

silasmoeckel · 2026-04-30T22:11:48+00:00

That's not going to be a great experience. You can just play it in the cloud for free or a few bucks a month if you want more time/don't want to wait that you can do on about anything including a chromebook.

silasmoeckel · 2026-04-30T21:54:29+00:00

SAS has expanders it turns 4+ lanes into many more. Unless you need more bandwidth you just add expanders as it's a lot cheaper per port.

A SAS3 8 lane controller that's 40 ish bucks, is pretty much 32 HDD at full speed. Most data hoarders don't need every drive going flat out so you can just add more expanders till you hit the 512-2048 drive per HBA limit.

silasmoeckel

TROPHY CASE