It is related to a long post from yesterday https://forum.opnsense.org/index.php?topic=44215.msg220486#msg220486 :o (https://forum.opnsense.org/index.php?topic=44215.msg220486#msg220486%20:o)
I try to narrow down what's happening but have no explanation yet for this behavior.
Related to the issue in the previous post I took a second Shield and put it on my desk (easier testing). Connected it with a cable to an access port on the 192.168.3.x network. The shield gets the following network config through DHCP:
IP 192.168.3.61
GW 192.168.3.1
DNS 192.168.3.1
subnet mask 255.255.255.0
It can play Netflix. I could install a browser through the playstore and search using Google.
Then disconnect the network cable, put the same cable into a (Windows 11) laptop. It gets the same network configuration via DHCP (Except IP address)
I can ping network devices in the same network (goes not via the firewall)
- Gateway ping does not work
- Browser does not work
- Ping on WAN IP addresses such as 8.8.8.8 does not work
Manually configured using another IP address, which was 1 higher than the Shield: no difference.
Somehow it seems related to the VLAN config in OPNsense, another VLAN just works.
I try to think of an explanation why quite some functionality on the Shield does work, but not on a computer.
Anyone an idea ?
To answer my own question. It turned out it was caused by the "enable static ARP" which was enabled and which does a little bit more than only mapping IP addresses to MAC addresses.