Hi misc,
I have 5 vlans terminated in Cisco switch as Layer 3. So the users' gateway is Cisco switch. The default gateway of Cisco switch is OpenBSD 6.9, which works as an office firewall. The switch also works as a dhcp server. However, I want OpenBSD office firewall to also act as a dhcp server. Is this possible while OpenBSD has no vlans on it? Only static routes for these ip networks are installed. I would set dhcp relay on the Cisco switch side, but when I looked at dhcpd(8), I was not entirely sure. I see that dhcpd can listen on an ip address with the -u[bind_address] parameter, but these lines confused me: ''With this option, dhcpd can answer DHCPINFORM from clients on non Ethernet interfaces such as tun(4) or pppx(4)’’ What I understand from above is; if I configure -u for a physical (em0) interface’s ip address it will not bind to em0’s IP address. It will use 255.255.255.255 instead of this. So it will not work; right? One last and probably related question: Can OpenBSD be configured to distribute ip pools which it doesn’t have? Thanks for reading…
