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r/Juniper

Image 1 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
Image 2 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
Image 3 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
Image 4 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
Image 5 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
Image 6 — Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.
▲ 34 r/Juniper

Tired of Manually Creating Juniper Configs? I Created a GUI Configurator App.

Hello everyone,

I got tired of manually creating and editing config files, so I built a simple GUI to make the process much easier.

Let me know if you’re interested in trying it out—I’d be happy to share! I’ll likely host it on GitHub so everyone can review the code and ensure it's completely safe and transparent.

I attached a few images of the tool. I have done extensive testing and it works flawless every time.

My apologies for the blurry images. I tried and tried to edit them to a smaller image so they didn't get scaled down and just couldn't figure it out.

u/One_Leading_1485 — 6 days ago
▲ 10 r/Juniper

srx400

Any idea when more info will be posted about this platform? I saw the press release a few months ago but there is no other mention of the srx400 series on the juniper or how websites. Not even a datasheet let along a release timeframe. I have been expecting to see the srx300 eol announcement for years.

https://www.hpe.com/us/en/newsroom/press-release/2026/03/hpe-introduces-sweeping-security-advancements-to-secure-ai-adoption-and-strengthen-enterprise-resiliency.html

u/Illustrious-Wash3905 — 7 days ago
▲ 3 r/Juniper

Mx204 4 version jump upgrade

Hi all,

Wondering if anyone might be able to help a juniper newbie out! Although familiar with Dell, cisco, arista (somewhat), aruba, etc. I am fairly unfamiliar with Juniper devices.

We currently have 2 vmhost Mx204's in a vrrp pair but one has fallen behind in the upgrades. Our master device is running 23.4 but the backup device is only running 19.1. During the last attempted upgrade it failed with lack of storage (not surprising) attempting a jump from 19 to 21.

I was able to get it running on disk 2 but had to preform a complete repair of disk 1 which for whatever reason took almost 5 hours. I really do not want to chance that again so I feel the best way to go now is to do a clean install on disk 1 straight to 23.4 booting to usb.

We have a rather large configuration file which should check fine but would obviously need to be reloaded after the upgrade. My question is mainly, does anyone have any experience with a clean usb upgrade and anything I should watch out for? Or any other suggestions?

I am somewhat alone on this process and currently do not have JTAC support. During the failed upgrade the master device held beautifully so I assume that a graceful upgrade is still in the cards but wondered if interfaces needed to be/should be disconnected doing a fresh wipe and install similar to some stack units or HA pairs.

Any help is appreciated!

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u/Matea1000x — 11 days ago
▲ 2 r/Juniper

LAG LACP on fab link - SRX cluster to Stacked Switched - Possible?

Hey guys,

I can't find this being discussed anywhere.

Let's focus on a single SRX for now

The STX connects to two l2 Aruba Switches (which are connected via VSX)

I originally planned to have two interfaces that belongs to fab0, one link connects to SW1 whilst the other connects to SW2.

I thought for some reason they would establish LACP with the switches, I even configured both Switches interfaces to be a lag interface with LACP active

When I check the switches, the LACP is of course down. they are acting as access ports btw.

Does this mean it's not allowed using fabric links as LACP!?

I know you can do it with RETH interfaces and this works just fine, but fabric links tho?

u/Qvosniak — 12 days ago
▲ 0 r/Juniper

Srx1500 os upgrade

Hello everyone,

I am planning to upgrade a Juniper SRX1500 chassis cluster from 23.4R2-S5.5 to 23.4R2-S7.4 via CLI. Could you advise on the best upgrade approach to ensure minimal downtime?

Thank you

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u/Few_Description_7647 — 11 days ago
▲ 2 r/Juniper

Automate IPS signature

Hello everyone! I work on a airgapped system with a bunch of internal wire walls. I’m curious how to automate my signatures. I know that I have to manually move the files onto the network but from there could I automate the file pull to the firewall and the installation of the package?

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u/ThiccStevie — 10 days ago
▲ 3 r/Juniper

Chassis Aggregated Devices Ethernet

Hey all, I wanted to ask about a config knob, the one that makes up the subject line.

For clarification, I'm hoping to find out what it's actually used for.

I ask this because at our primary HQ, I'm working on some issues with the LACP link back to our core switch from the 5-member access chassis in the MDF.

We have 10g multimode links using identical SFPs, Patches, Etc between the two.

The Core switch seems to be killing the link on xe-0/2/0 of the access switch, I'm seeing on that side that the link is just going down and then coming back up. On the core side, I'm seeing the link timeout according to the mist switch insights, I'm also seeing these timeouts on other aggregate links as well. The one thing I noticed, is that on the core, the aggregated devices knob is not setup at all. Which is weird to me, because in my experience, I've always needed to add that to the config for LACP to work properly. Essentially, I want to fix these timeouts, because I think they are related to some end user issues, and complaints we gotten, but I don't want to break my network lol

https://preview.redd.it/6lmn6kpr619h1.png?width=553&format=png&auto=webp&s=9f2cfc920ca59890707bc60a4e3700eeaef1424d

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u/PP_Mclappins — 13 days ago