Configuring rum(4) Interface for DHCP on OepnBSD 4.3

A couple of posts back, I wrote about making my D-Link USB wireless adapter (DWA-110) work with OpenBSD 4.3. This time, I'll post how I made it work as an AP and "un-securely" assign IP addresses to any host.

First, I created a file `/etc/hostname.rum0' and put the necessary information needed for the interface to work as an AP. In my case, I placed this line (this very self-explanatory, no need to explain each part):

inet 172.168.255.1 255.255.255.0 172.168.255.255 media autoselect mode 11g mediaopt hostap nwid jakosalem chan 11

Second, I wanted DHCP to listen to the rum(4) interface and spew out IP addresses for requesting hosts. I did this by adding the interface name `rum0' to the `/etc/dhcpd.interfaces' file and then, I edited `/etc/dhcpd.conf' and placed the following lines:

default-lease-time 3600;
max-lease-time 86400;

subnet 172.168.255.0 netmask 255.255.255.0 {
option routers 172.168.255.1;
option broadcast-address 172.168.255.255;
range 172.168.255.100 172.168.255.254;
}

Lastly, to make DHCP run everytime I boot, I added the line `dhcpd_flags=""` to `/etc/rc.conf.local'.

And that's about it - DHCP for wireless clients at home. Wohoooo!

NOTE: This configuration lacks security measures - OBVIOUSLY - to the point where an any security-pundit would most likely choose to slash his/her wrists rather than think about the sheer absurdity of this configuration. I'll post a more secure configuration when I'm bored enough and have nothing else to do.