For anyone using the DHCPv6 client app (be.mygod.dhcpv6client) on a recent version of Android, here's something that might save you some frustration - I learned it the hard way.

In theory, you'd only need the app to run occasionally if your leasetimes are reasonably long, so it's tempting to try and save battery by not exempting it from background restrictions. I figured I'd be clever and rig up a trigger to fire it every day plus whenever I reconnected to the network, which is probably cheaper than running a separate app constantly. And lo and behold, my wifi just couldn't hold a connection anymore.

After a lot of troubleshooting, it turns out that, when the app is killed off by the system, the underlying library removes any addresses it's acquired. On its face, this doesn't seem so bad, as the network should revert to IPv4-only after those addresses are removed. But it gets worse: because you stop receiving IPv6 traffic immediately, but the connectivity check takes a while to invalidate the cached IPv6 address it's monitoring, Android will interpret the fact that it's no longer receiving responses as evidence that the network failed. So your phone disconnects from the wifi - and if the whole cycle triggers on every connection, you'll never get more than about a minute of connectivity before it all comes crashing down.

So as far as I can tell, there's no alternative but to exempt it from background restrictions, and leave it running constantly even though you only need it to exchange a couple packets with the router every 24 hours. If anyone figures out a way to overcome this, I'd love to hear about it. Otherwise, I hope this helps someone else facing similar frustrations.

#android
#ipv6
#dhcp
#dhcpv6

Doing a little testing with #Privoxy, and #AdGuard's DNS servers https://adguard-dns.io/en/public-dns.html (the latter in lieu of a #PiHole server later).

No way to configure #tvOS to use a proxy (did I miss it?) but custom DNS servers was easy & appears to have had the immediate effect of removing ads on #Peacock and #ParamountPlus. I guess #Hulu is avoiding recognizable ad-servers?

#DHCP + #WPAD is nice: https://www.davidpashley.com/articles/automatic-proxy-configuration-with-wpad/

Irony: Needed this in Privoxy:

{ -block }
adguard.com
adguard-dns.io

#Streaming

We have updated our blog post on setting up a lab network on Linux-based operating systems. Check out the new version with better DNS support for your lab gear!

https://blog.zero-iee.com/en/posts/labornetzwerk/

#zeroiee #teamZERO #networking #software #linux #ubuntu #dns #dhcp #lab

I'm trying DHCP and DHCPv6 on an Arduino Uno and I'm wondering why it doesn't work ... the script would use 264.3% RAM (5412 bytes / 2048 bytes).

#Arduino #DHCP #DHCPv6 #IPv6 #OutOfMemory

#VRR unterstützt entweder kein #FreeSync oder meine #DHCP Version ist zu alt. Ich tippe auf letzteres.

#Xbox #XboxInsider

https://stadt-bremerhaven.de/xbox-diese-neuerungen-stecken-im-september-update/

DHCP and DNS client in Linux #dns #dhcp

https://askubuntu.com/q/1484712/612

Adding default routes in dhclient-exit-hooks breaks ssh until first sending a ping #ssh #dhcp

https://askubuntu.com/q/1484339/612

In the next episode of our #webinar series on October 19th, we will look at the role of #DDI in #SDWAN and #SASE. Until then, you can watch the recording of the #IPAM security considerations: https://www.n3k.com/experten-webinar-reihe-mit-andreas-taudte-mr-ddi
#DNS #DHCP

Ubuntu 20.04, Cannot ping gateway #networking #server #internet #dhcp

https://askubuntu.com/q/1482901/612

Can't transport Ubuntu to another machine - fails dhcp connection #networking #dhcp #ip #ipaddress

https://askubuntu.com/q/1482841/612

Copy info from DHCP to Manual settings in Network Manager? #networking #kubuntu #networkmanager #dhcp

https://askubuntu.com/q/1482739/612

Here you can see me stealing content from my concept documents for my webinar on IPAM security considerations next week 😏
https://www.n3k.com/experten-webinar-reihe-mit-andreas-taudte-mr-ddi
#DNS #DHCP #IPAM #DDI #webinar

Auch ganz interessant: Wenn ich einem #Ubuntu Server eine statische IP geben will, die ich vorher per #DHCP dem Container gegeben habe, irgendwie muss ich ja herausfinden, welche IP frei ist, verweigert der Container mir den Dienst und behauptet, Ubuntu 23.04 wäre veraltet.

Problems enabling IPv6 #dhcp #ipv6 #dhcpv6

https://askubuntu.com/q/1480938/612

Just read a toot about how #DHCP "is a sort of magic ... done properly" and found the perfect excuse to do something that I wanted to do for the longest time:

A massive thank you and *really loud* shout out to @rsmarples for all the hard work, heart and soul that you put into your wonderful software: #dhcpcd !

Thank you for solving me so many problems so many times with your marvellous piece of software. I could no longer let your wonderful work go unnoticed ! 🤗 🥳 🍻 🥳 🤗

#BSD #RUNBSD #Linux

ubuntu server DHCP Server two interfaces -how? #networking #server #dhcp

https://askubuntu.com/q/1478893/612

#DHCP leases of the nested Micro #VM

https://github.com/astro/microvm.nix

So, looking for some #tech ideas.

My mom, has a crazy home network...

She's nosey and has tons of cameras, devices, live streaming gear, etc.

She has basically outgrown the feature set of her router (we are already running unifi(s) aps, etc).

What I need is a #DHCP server that can run on a device (or container) with plenty of room for reservations, and settings depending on the device Mac.

I thought about pihole but not sure and am looking for suggestions!

Thanks!

Looking for some cool stuff on a hot day 😏 !? The #recording 🎥 and #slides 📄 of our #nextgen #DHCP webinar are available 👨‍💻 and the registration for #cloud #DNS challenges is open.
https://www.n3k.com/experten-webinar-reihe-mit-andreas-taudte-mr-ddi

Well, that issue with #ipv6 #dhcp not working properly on #ubuntu 22.4 on #oraclecloud?

It's a known issue.

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2025382