@kowalmisiek If I placed my devices in his network, i.e. we had a common network, e.g. 192.168.1.X, then problems with internet management would start. My friend has his own provider and I have mine....

How to do it like this. Don't do a vlan. Connect my friend's network as a WAN port as (isp) and set a static IP address in ER605. Will I see my friend's network this way? Theoretically, the WAN port...

@kowalmisiek Overall, it looks like everything worked out. Thank you for your help. I have one more question. Can I use my friend's internet and vice versa by entering the data from his network (ip,...

@kowalmisiek I fixed it but now I have no communication with the 192.168.1.X network

@GRL Hello. I started configuring it according to @GRL's description I'm attaching images of my configuration. At this point I haven't made static routes on my friend's router. I can see my friend's...

@kowalmisiek I'm not a professional when it comes to VLANs and I'm trying to understand it. It always seemed to me that if there is a new defined VLAN on one side, e.g. VLAN 10, then on the other...