Hi, I've only recently gotten to grips with OpenWRT.
The installation on a FritzBox 4040 has now succeeded.
Since I do not yet want to use the router productively due to existing knowledge gaps, I have so far connected him behind a FritzBox 7590.
All devices are currently still connected to the 7590.
My question relates to a possible security problem.
There is almost a DMZ between the 7590 and the 4040.
The 7590 works as a full router, not just as a modem.
Routes are set for the 4040 networks.
This a router cascade?
Are there security issues in this test configuration?