Hello, I'm trying to run dhcpd in routing domain 20 on OpenBSD 7.8 with a virtual (vlan) interface, but it's not working as expected and I wonder if I'm missing some configuration step or key detail.
Setup: - Physical interface ix1 (10Gb SFP+) with vlan 20 - Virtual interface vlan20 created via: ifconfig vlan20 create vlan 20 vlandev ix1 - vlan20 configured: 10.13.20.1/24 in rdomain 20 - dhcpd configuration: dhcpd_flags="vlan20" and dhcpd_rtable="20" in rc.conf.local - Changed /dev/bpf* permissions to crw-rw---- root:_dhcp (to allow _dhcp access) Observed behavior: - dhcpd starts without errors, shows "Listening on vlan20 (10.13.20.1)" - dhcpd runs as _dhcp in rdomain 20 (checked with ps aux -o rtable) - netstat -an does not show a socket listening on port 67 - No messages in logs - When I check with fstat (`doas route -T 20 exec fstat | grep dhcpd`), I see: _dhcp dhcpd 43427 5* internet raw icmp 0xfffffd83ecef0528 rtable 20 I'm not sure how to interpret this output—the FD 5 has a star (`*`), and the protocol is "raw icmp" rather than UDP. Is this normal for dhcpd in a rdomain, or is it a sign of a failure to bind a network socket? Questions: 1. Is there something special about running dhcpd on virtual (vlan) interfaces in a routing domain? 2. Is changing /dev/bpf* permissions for _dhcp recommended for this scenario? 3. Is this fstat output for dhcpd a sign of an issue, or am I misunderstanding how dhcpd interacts with BPF/sockets in a rdomain? Any advice or references welcome thanks for the help! Kind regards Kevin
