Notices by 🇳🇴 Thor — backup account (thorthenorseman@octodon.social), page 78

Unfortunate ad placement. Supermarket food ad right next to bits of human heart tissue...

How are you meant to use the full 80 MHz channel width at 5 GHz on these LAPAC1200 access points if have a building with more than one access point? The only way of getting non-overlapping channels with these is to reduce the bandwidth to 40 MHz.

I should have read the data sheet more carefully, but to be honest, I took the tri-band functionality on the Asus routers I already had for granted, and assumed that every other 5 GHz WiFi radio was capable of it.

I take back what I said about getting a Linksys LAPAC1750 instead of LAPAC1200 if you need more channels. That model is no less limited in terms of available channels. It mystifies me that these business access points lack 2 entire 5 GHz bands that Asus' home routers handle without a hitch. Buying business access points instead of home routers hasn't paid any dividends yet. They have more advanced networking features, but I could've lived without those.

@bamfic If only my capacity for work wasn't so heavily contingent on having fun. Jobs where I can't have fun are jobs that I perform extremely slowly or not at all.

@bamfic I only reluctantly took this network project for reasons of needing money. I didn't expect to enjoy it.

@bamfic I'm feeling very inspired working on this particular project for some reason. I don't know why I suddenly find networking so enjoyable.

I took a Cisco certification 17 years ago as part of a general IT operations course, and I barely had an interest for any of it, because my heart was in programming and I was only taking that course to get a piece of paper proving that I had IT skills.

@bamfic It's been a very long time...

@Taweret Not to mention that we could be trapped in a Flatland, unable to see life forms that exist on a plane that we don't have access to. Of course, that would be nigh impossible to depict in a TV show, though Star Trek has gotten close, with unseen enemies that wreak havoc on the ship, etc.

@Taweret There could be systems of chemistry and physics that could support autonomous self-replicating entities in a form that we simply didn't think of.

@Taweret I feel that scientists who speculate about alien life forms sometimes display a certain lack of imagination. They look for planets that can support Earth-type life, but only because it's so hard to imagine anything else without having encountered it.

@Taweret Well, yes, but do consider that an alien life form is likely to originate from a location where biogenesis happened in a completely different way from Earth's. Perhaps its version of genetics, if it has that, would work completely differently. Convergent evolution happens for similar niches or environments, but all life on Earth is shaped by having originated from DNA/carbon-type chemistry, in an environment with water/CO2/oxygen.

@Ricardus I'd expect most actual aliens to look fucking weird like that. Like, you can't tell where is the face, and does it even poop?

It just occurred to me that it's only dirty to connect the WAN port on a router to the LAN port on another router if you are doing NAT on both routers. If the downstream router forwards packets without NAT, and the upstream router knows about the downstream router's subnet, and they don't overlap, it's just plain old routing...

I have absolutely zero reason to have my own routed network segment in the living room, yet here we are...

Star Trek aliens look implausibly human.

I liked the Mikrotik RB750Gr3 routers I got for the landlord's network so much that I bought one for myself, and set up a little network segment for myself in the living room, for no particular reason.

Working on a frequency plan for a WiFi deployment. Stars are main channels, dots indicate channel width. 1A, 1B, 38 and 40 are building numbers. Dark green is cellar, green is ground level, cyan is one level up, dark cyan is two levels up. Building 1A, 1B and 38 are next to each other, building 40 is behind building 38. The goal is to minimise channel overlap in adjacent locations.

Linksys LAPAC1200 access points only have a single 5 GHz band, operating on channel 36, 40, 44 or 48. In 80 MHz mode, they will use channel 42 as the extension channel no matter which main channel you pick. In 40 MHz mode, they will pick extension channel 38 for main channel 36 or 40, and extension channel 46 for main channel 44 or 48. If you need non-overlapping 80 MHz channels, get a LAPAC1700 instead.

Specifically, for 5 GHz, to get an 80 MHz channel width, you have to use channel 42, 58, 106, 122, 138 or 155 for the extension channel. If your radio chipset supports 160 MHz channels, you have to use channel 50 or 114. I'm not sure if an 80 MHz radio chipset will use the 160 MHz channels. ASUS RT-AC66U routers operate at 80 MHz if you use channel 36, 52 or 100 as the main channel, respectively auto-picking channel 42, 58 or 106 as the extension channel.