root@OpenWrt:~# cat /etc/config/network 
# Copyright (C) 2006 OpenWrt.org

config interface loopback
        option ifname   lo
        option proto    static
        option ipaddr   127.0.0.1
        option netmask  255.0.0.0

config interface lan
#       option type     bridge
        option ifname   eth0
        option proto    static
        option ipaddr   192.168.0.2
        option netmask  255.255.255.0

config interface wifi
        option ifname   ath0
        option proto    static
        option ipaddr   192.168.2.1
        option netmask  255.255.255.0

config interface wan
        option ifname   ppp0
        option proto    pppoe

root@OpenWrt:~# cat /etc/config/wireless 
config wifi-device  wifi0
        option type     atheros
        option channel  11

config wifi-iface
        option device   wifi0
        option network  wifi
        option mode     ap
        option ssid     teszt
        option hidden   0


root@OpenWrt:~# cat /etc/dnsmasq.conf 
# filter what we send upstream
domain-needed
bogus-priv
filterwin2k
localise-queries

# allow /etc/hosts and dhcp lookups via *.lan
local=/lan/
domain=lan
expand-hosts
resolv-file=/tmp/resolv.conf.auto

#@ifdef dhcp_enable
#dhcp-range=@@start@@,@@end@@,@@netmask@@,@@lease@@
dhcp-authoritative
dhcp-leasefile=/tmp/dhcp.leases
#@endif
#@ifdef wan_ifname
#except-interface=@@wan_ifname@@
#@endif
dhcp-range=lan,192.168.0.50,192.168.0.60,255.255.255.0,1h
dhcp-range=wifi,192.168.2.50,192.168.2.60,255.255.255.0,1h

# use /etc/ethers for static hosts; same format as --dhcp-host
# <hwaddr> <ipaddr>
read-ethers

# other useful options:
# default route(s): dhcp-option=3,192.168.1.1,192.168.1.2
#    dns server(s): dhcp-option=6,192.168.1.1,192.168.1.2
dhcp-option=lan,3,192.168.0.2
dhcp-option=lan,6,195.228.74.126
dhcp-option=wifi,3,192.168.2.1
dhcp-option=wifi,6,195.228.74.126