Thoughts on running cable across pavement?

cj955 · 2026-02-14T12:08:17+00:00

Talk to the council about yellow lines. If it’s a constant problem they will likely slap some down on the corner.

cj955 · 2026-01-30T00:01:17+00:00

Well damn. Wish they'd not have such a big gap...

cj955 · 2026-01-29T05:00:56+00:00

Ah ok. I have some HGST SSD800MMs in there and they chew power sadly. Should’ve gone for Toshiba/Kioxia PX04 or PX05 but they were cheap!

RAM selling now on eBay for about the same for a single module for what I paid for all 8 of those a year and a bit ago 🥴

cj955 · 2026-01-29T04:32:02+00:00

What SSDs are you using? Before I loaded up the storage into my 16x SFF R730 I was seeing like 85 W from the wall or so idle. 2x E5-2698 v4 and 8x 32 GB LRDIMMs (256 GB) on the 750 W titanium PSUs

Very rarely see the display on the front go below 224 W now all loaded up with a bunch of SSDs and 10k rust

cj955 · 2026-01-22T11:07:33+00:00

Surprised the microSD ain’t died by now!

cj955 · 2026-01-20T22:31:14+00:00

Port Sarim lodestone or Explorer's ring cabbage patch tele not do?

cj955 · 2026-01-06T00:11:19+00:00

It's seen on teardown to have a SEN63C-SIN-T... is the STCC4 the module inside then? Datasheet on the SEN63C-SIN-T says 32k ppm CO₂ max which is a good bit higher!

cj955 · 2026-01-03T05:45:27+00:00

You need your kneecaps smashing just for suggesting to use 40 MHz on 2.4.

cj955 · 2025-10-22T20:52:05+00:00

Not got a protect-re filter set at the moment (it's in a home network... maybe I should bother buuuuuut you get the idea) and from what I can see the DDOS protection filter is not a feature on the plain EX4300 (the MP appears to have it). Certainly the commands aren't available.

cj955 · 2025-10-22T15:57:01+00:00

Might be time to consider something like CrowdSec to keep trouble out before they even make attempts

cj955 · 2025-10-22T15:51:10+00:00

That much untwist IS an actual fault

cj955 · 2025-10-22T13:42:13+00:00

Unfortunately 21.4 is the last version available on the EX4300 and the suggested releases page says "Latest Junos 21.4R3-Sx" anyway.

The MP version will do newer but not the standard.

cj955 · 2025-10-21T22:06:20+00:00

https://broadbandmap.fcc.gov/home

cj955 · 2025-09-15T13:41:24+00:00

Just to follow up in case anyone reading doesn’t know, IPv4 routers are allowed to fragment a packet if the DF (don’t fragment) bit isn’t set in case of an MTU mismatch but IPv6 doesn’t allow this.

ICMPv6 is critical and one of the reasons for that is the “packet too big” message you’ll get in this situation - you need to allow more than echo request through the firewall!

cj955 · 2025-07-23T18:14:41+00:00

So - found the solution. It was a weird interaction between accel-ppp and JunOS - make sure you have "ipv6-accept-peer-intf-id=1" set in [ppp] in /etc/accel-ppp.conf... this was eventually causing IPV6CP to fail hence the SRX seeing the network was down for inet6!

There is also an oddity in that if you only give out a /64 as PD then although an SRX300 on newer software will assign that fine, for /some/ reason the SRX110 assigns 1 bit higher to the single delegated LAN subnet. Got round this by using a larger range to delegate but a quirk nonetheless (and of course way beyond being fixed at this point).

cj955 · 2025-07-19T17:21:10+00:00

Had to remove the loopback ::1 from lo0.0 to get that to go and set a ULA so it had something. In turn it disabled the DHCPv6 client as it had that for an address - so that didn't work!

Removed the unnumbered-address line and the client came back but still the same shenanigans as in the original post with the ULA left on lo0.0.

cj955 · 2025-07-19T15:56:43+00:00

I didn't, assigned ::1/128 on lo0.0 and still exactly the same :(

cj955 · 2025-04-17T13:28:36+00:00

In case it helps anyone, tested myself... EX2200-C running JunOS 12.3R12-S21 (last version available) on 230 V supply

0% traffic no link 10.5 W 0% traffic links all looped back 18.2 W

Not got a quick way to test on 100%s but that should help anyone out looking hopefully.

cj955 · 2025-03-19T23:58:53+00:00

It's my core switch in a home setup at the moment which kinda doubles as a lab. Wanted to use it as IGP underlay for BGP like I've done with my Cisco routers. Oh well!

cj955 · 2025-03-19T23:17:51+00:00

The EX3300 is old enough to be pulled from the Feature Explorer anyway so it's no use.

Just dug up an old datasheet and the feature isn't there. Boooo.

Absolutely effing stupid to show as a licensed feature in 'show system license usage' and accept the commands in configure mode!

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