VLAN Trunk on DSA

Installing and Using OpenWrt
1

Omg, … i´m struggling since weeks for my Homenezwork using Openwrt.
I have some really mad issues with DSA VLAN tagging to build my trunk in luci.

So I want my setup with a Mikrotik hexlite RB750r2 Routerboard with a Trunk to miy AVM Fritz!Box 4040. Both are up to date on version 24.10.

The Microtik gets connetcted to a Starlink Router that has been bypassed.

I have plenty of options that I never seen in any tutorials, so I am a little confused. So the Mikrotik luci own a Switch rollout on the networktab and a device Tabe in Interfaces.

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So the Switch configuration tab for VLAN´s is the old swconfig setup? When i use it, does it work on the DSA Config for the Fritzbox 4040?

Next point is, when Im setting up a bridge or an interface, I have devices to choose, i m not having a clue what it is for..

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I cant find the single physical ports here? Why?

So, the mikrotik hexlite routerboard is a physical switch, true? I can use hardware ports to route different lans. But how do that and how to build a trunk to my fritzbox!? I dont get it running since weeks. So If somebody has an idea how to set it up corretly ill be very glad. Thank you!

best regards Thomas

2

RB750 is an ath79 board and those are still swconfig. Under either swconfig or DSA the packets on the cable are IEEE standard tagging and are compatible not just among OpenWrt but with any other standard equipment.

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Okay, so everything should work right. But I still dont know how to set it up. So I should make up a new bridge? Wich devices should I take?

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And then I choose the Bridge VLAN filteing, or the set up a VLAN in the switch tab? It looks similiar. So confusing.

5

what does that mean? Nothing? You have an proper answer for me Mr. mk24 ?

6

I think that what @mk24 was saying is that OpenWrt, regardless of DSA vs swconfig, produces 802.1q tags that are industry standard. A device with DSA can communicate with one with swconfig, just the same as either of those can communicate with any other standards compliant hardware/software/firmware.

That said, it is important to be clear that you cannot mix the configuration constructs of DSA and swconfig within any given (i.e. singular) device. A device that uses DSA must utilize DSA configuration methods, and a device that uses swconfig must use swconfig's methods. So you cannot use DSA syntax on a device that's still using swconfig (such as ath79 targets). But, this is referring to the internal construct and syntax for each individual device. Once configured, by the time the data actually egresses (or ingresses) the ports, the ethernet frames will be standards compliant.

Let's have a look at the configs from both of your devices to see what might be going wrong:

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
7
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