Re: subnet subset blocked
On 24 Sep 2024 21:31 +0100, from adamw@matrixscience.com (Adam Weremczuk):
> I've just launched a Debian 12 VM in VMware (ESXi 7.0.2) and installed
> apache2 / php / postgres stack on it + ssh access.
>
> Generally we have 3 subnets (IPv4 only):
>
> - 192.168.4.0/22 (Ethernet LAN) - which starts with 192.168.4.1 and ends
> with 192.168.7.254
>
> - 10.10.10.0/24 (VPN1)
>
> - 10.10.20.0/24 (VPN2)
>
> The new VM runs at 192.168.4.12
> I can access TCP services (22, 443) from 192.168.4.x, 10.10.10.x and
> 10.10.20.x but not from 192.168.5.x (a subset of Ethernet LAN).
To me this smells like a subnet mask length issue.
Triple-check that `ip a sh` shows the IP address and subnet mask that
you expect.
--
Michael Kjörling 🔗 https://michael.kjorling.se
“Remember when, on the Internet, nobody cared that you were a dog?”
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