Re: [gentoo-user] WLAN with fixed IP

[Bruce Hill]

On Tue, Nov 13, 2012 at 04:52:25PM +0100, Helmut Jarausch wrote:
> >>
> >> > I'd like to assign fixed IP numbers to computers of a local
> >> map MAC addresses to IP addresses.

This is what your /etc/dhcp/dhcp.conf would look like on the router, or how it
should be configured wherever DHCP is handed out:

authoritative;
ddns-update-style none;

default-lease-time 1800;
max-lease-time 1800;

subnet 192.168.54.0 netmask 255.255.255.0 {
        range 192.168.54.10 192.168.54.50;      
        option broadcast-address 192.168.54.255;
        option domain-name-servers 192.168.54.1;
        option routers 192.168.54.1;
}

subnet 192.168.100.0 netmask 255.255.255.0 {
        range 192.168.100.10 192.168.100.50;    
        option broadcast-address 192.168.100.255;
        option domain-name-servers 192.168.100.1;
        option routers 192.168.100.1;
}

host server {
   hardware ethernet 00:d0:68:0b:87:66;
   fixed-address 192.168.100.3;
}

You of course need to adjust for your network(s). And I'd install dhcpcd and
put it in the default runlevel.

Then on the client you have /etc/conf.d/net like this:

modules_wlan0="wpa_supplicant"
wpa_supplicant_wlan0="-Dwext"
config_wlan0="dhcp"

if you're using wpa_supplicant (you mentioned wpa_cli). 

And your /etc/wpa_supplicant/wpa_supplicant.conf would look like:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel
#ap_scan=0
#update_config=1

network={
        ssid="YourSSID"
        psk=your-secret-key
        scan_ssid=1
        proto=WPA2
        key_mgmt=WPA-PSK
        group=CCMP TKIP
        pairwise=CCMP TKIP
        priority=5
}



If you just want to setup a static IP per machine, /etc/conf.d/net:

config_wlan0="192.168.1.2/24"
routes_wlan0="default via 192.168.1.1"

Hope this helps. If it's too confusing, might mention where DHCP is handed
out, and some more about your LAN.
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