Re: [uknof] IPv6 and mobile device frustrations

2023-07-10 Thread Jonathan McDowell
On Mon, Jul 10, 2023 at 06:07:44PM +0100, Alan Goodman wrote:
> TLDR: I provide network rentals and leases among other related
> services.  I started providing IPv6 by default in 2019 ish and
> recently started noticing spotty connectivity on mobile devices only.
> Was wondering if anyone else has ran into this.
...
> I've tried enabling IGMP snooping and Ubiquitis multicast enhancement
> which didnt appear to make any difference.

If this is with Ubiquiti APs then there are known issues with their
ability to correctly pass RAs. There are various posts on their forums
about it and I've seen it myself on my home setup; it'll look like
things are fine and then some RAs won't get through and the phone will
lose v6 connectivity as a result.

J.

-- 
... 101 things you can't have too much of : 31 - Hot showers.



Re: [uknof] SentryPeer: A distributed peer to peer list of bad IP addresses and phone numbers collected via a SIP Honeypot

2021-11-26 Thread Jonathan McDowell
On Wed, Nov 24, 2021 at 09:20:33PM +, Gavin Henry wrote:
> Hi all,
> 
> I hope you don't mind the post, but thought this might be of use and
> in the spirit of release early, release often I've done an alpha
> release:
> 
> https://github.com/SentryPeer/SentryPeer

I haven't delved into the p2p protocol side of things, but as a long
time C programmer I'd be extremely wary of starting a large new project
with it. Especially one that is designed to be exposed to attackers. An
opportunity to learn Go or Rust perhaps?

J.

-- 
/-\ | Verily go thee not unto the
|@/  Debian GNU/Linux Developer |   internet for they will tell you
\-  |  both yea and nay



Re: [uknof] Thought for the day: announce the end of IPv4 internet connections by 2026

2020-05-27 Thread Jonathan McDowell
On Tue, May 26, 2020 at 10:59:28PM +0100, Pete Stevens wrote:
> > Unfortunately the same applies to the majority of consumers, who
> > realistically don't care how their internet works as long as they
> > can access Facebook/Candy Crush/.
> 
> A v6 only end user ISP can already access anything behind cloudflare,
> facebook, google, youtube, netflix but not twitter.

I broke v4 on my wired lan last week (rogue DHCP server on a development
OpenWRT box) and it was 15 hours before I noticed (admittedly part of
that I was asleep). It was Twitter that made me investigate, everything
else (ssh, email, whatever other websites I was looking at) was all
fine.

Last time I ran numbers (about 6 months ago) 50% of my home traffic went
over v6 (without any attempt to coerce traffic to prefer it over v4).

J.

-- 
Revd Jonathan McDowell, ULC | I'm only here for the salad bar.



Re: [uknof] Public IPv4 Addresses Required

2020-05-06 Thread Jonathan McDowell
On Tue, May 05, 2020 at 01:24:18PM +0100, Pete Stevens wrote:
> Things that IPv6 internally protects you from
>  - running out of RFC1918 space if your organisation gets big
>  - addgress overlap if you acquire someone / are acquired
>  - IP address costs if you can run your own things v6 only
> 
> I often wonder how you present the business case for never becoming huge
> and never being acquired to the shareholders.

Renumbering is the problem of the acquirer, not the acquiree. That's an
easy sell to the shareholders, because acquiring companies just assume
IT is one of those areas that can be easily merged for cost savings.

I'm more disappointed at how software companies don't push for v6 on
their developer setups. How do we expect solid code out there that
doesn't fall over or just have UI glitches when it experiences v6, if
the developer and QA have never had a v6 setup?

J.

-- 
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Re: [uknof] UK IPv6 Council meeting - slides and video available

2016-11-09 Thread Jonathan McDowell
On Wed, Nov 09, 2016 at 01:26:03PM +, James Greig wrote:
> Link doesn’t seem to be working ?

Try http://www.ipv6.org.uk/2016/10/31/ipv6-council-meeting-october-2016/

(10, not 08).

> From: uknof [mailto:uknof-boun...@lists.uknof.org.uk] On Behalf Of Tim Chown
> Sent: 09 November 2016 13:13
> To: uknof@lists.uknof.org.uk
> Subject: [uknof] UK IPv6 Council meeting - slides and video available
> 
> Hi,
> 
> Given we’ve just had quite a thread on IPv6, hopefully this is of interest…
> 
> Slides and video are now available from our recent meeting. The agenda 
> included ISP updates as well as other industry and academia deployment 
> reports.
> 
> See http://www.ipv6.org.uk/2016/08/31/ipv6-council-meeting-october-2016/
> 
> Best wishes,
> Tim
> 
> 
> 

J.

-- 
101 things you can't have too much of : 22 - Friends.