Strange delay for every 10th ping

[Chris Green]

On Wed, Feb 02, 2022 at 08:50:24AM +0100, Bo Berglund wrote:
> On Tue, 1 Feb 2022 21:48:12 +0000, Chris Green <cl at isbd.net> wrote:
> 
> >Can anyone suggest why I should see this delay on every 10th ping
> >across my home LAN:-
> >
> >    chris$ ping dns
> >    PING dns (192.168.1.2) 56(84) bytes of data.
> >    64 bytes from dns.zbmc.eu (192.168.1.2): icmp_seq=10 ttl=64 time=3.92 ms
> >    64 bytes from dns.zbmc.eu (192.168.1.2): icmp_seq=12 ttl=64 time=112 ms
> 
> What happens if you instead ping the IP address?
> Like:
> ping 192.168.1.2
> 
I'll have to try at the original location.  On the 5Ghz connection to
a different AP using the IP instead of 'dns' it seems marginally
better but the problem is much less noticeable anyway.


> And as an aside concerning LAN setup:
> 
> You should not really use the IP range 192.168.1.0/24 for your LAN.
> That is a default used in many places and if you ever think about setting up a
> VPN server on your LAN to get remote access then you will be hosed if you try to
> connect from a cafe or such where they have set up a router with the defaults...
> This happens a lot.
> 
> Choose something else like 192.168.189.0/24 instead.
> 
I used to have it set up on 192.168.13.0/24 but got fed up with
changing it to that so reverted to 192.168.1.0/24.  If I ever set up a
VPN (unlikely, I use proxies when I need that sort of thing) it'll be
running on my own server so I can choose whatever IP I like at both
ends.  I have three LANs on my router anyway.

-- 
Chris Green