Re: network problem
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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, October 5, 2021 2:00 PM, Pierre Frenkiel <pierre.frenkiel@gmail.com> wrote:
> hi,
> I have the following problem on my laptop.
> my /etc/network/interfaces file contains:
> auto enp0s1
> iface enp0s1 inet static
> address 192.168.1.10
> netmask 255.255.255.0
> gateway 192.168.1.1
>
> but after boot, ifconfig gives
>
> address 192.168.0.163
> netmask 255.255.255.0
> gateway 192.168.1.1
>
> Then, networking works i.e. I can reach Internet, but of course
> not my desktop and other devices 192.168.1.xx
>
> I looked on the entire disk to find where this address 192.168.0.163
> is hidden, but I was unable to find it !
>
> rather strange, isn't it?
Most peculiar indeed.
Does the interface always get the same address?
Have you tried setting the IP with ifconfig -- after the box is up with the bad IP address?
Is there anything in /etc/init.d that might be doing it?
Have you looked at dmesg? (That 163's gotta be somewhere.)
Have you looked at what's in /etc/network/interfaces.d? (There's nothing in mine, but ifup works as expected here.)
Have you tried Webmin? (I know, I know, but it works.)
Have you tried pinging the two addresses? (Not likely, but something's bent somewhere.)
A workaround: change the netmask everywhere on your LAN to 255.255.0.0 and let the address be whatever systemd wants to assign to it :-)
--
Glenn English
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