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You can try to use a proxy server. I haven't used one for years so I'm not very familiar with it. But it is exactly made to sit in the middle between the user and the internet server. For example besi …

You are using terms in relation to VLANs that I do not understand, so I will give a short summary how I understand your setup so far. VLANs are build with additional tags on each ethernet frame. These …

To understand what I mean, here is a Quote from Wikipedia Wide area network: it may be best to view WANs as computer networking technologies used to transmit data over long distances, and between different …

I don't know what you have configured. But what you want is a stand alone access point with a bridge. You can find an example at Setting up a Raspberry Pi as an access point - the easy way. Just follo …

To have an ordinary answer, the questioner answered his question in a comment: manually changing the IP adress in /etc/network/interfaces did the trick! Thank you all for the help!

You want to have two connections to the same destination. This is mainly a routing problem to decide what interface to use. I can't see an easy solution at first glance because the destination is the …

I guess you have your raspberry pi zero connected to your android phone with USB-Tethering and your phone is connected through wifi to your router and the internet. So it is member of your local netwo …

Real OSI layer 2 bridging an access point to an ethernet port works but bridging a wifi client connection to an ethernet port does not using the kernel build in linux bridge. Bridging wifi is specifie …

You can use a packet sniffer like tcpdump or wireshark. I prefer tcpdump for the command line. I would first capture the data stream from a device that connects successful to get an idea how it looks …

[2] Howto migrate from networking to systemd-networkd with dynamic failover [3] man systemd.unit - overriding vendor settings …

In general you have three networking systems build in a default Raspbian image. … This are dhcpcd - the default networking system on Raspbian networking from the package ifupdown - this is the classic networking managed in the file /etc/network/interfaces with ifup and ifdown systemd-networkd …

As far as I understand you will make your RasPi an access point and connect it to the internet. You don't tell us how do you want to connect it to the internet. You can use an USB dongle working as 4G …

If you do not need ifupdown you can use the official supported Raspbian Stretch distribution. Just flash it to a SD Card, configure wpa_supplicant for wifi and everything works out of the box. If you …

It is a bit confusing for me why a ssh connection to the same ip address 10.0.155.157 on port 22 works and it also should work on port 5353. Usually the ssh daemon (server) listens only on one port. T …

To configure the interfaces with ip addresses the dhcpcd.service is used. That's the reason why you set them in /etc/dhcpcd.conf. It seems that only setting the interfaces down and up with ip does not …