# ip addr show
...
3: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:24:d7:ae:dc:64 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.8/24 brd 10.0.0.255 scope global dynamic wlp3s0
       valid_lft 3596sec preferred_lft 3596sec
    inet6 fe80::224:d7ff:feae:dc64/64 scope link
       valid_lft forever preferred_lft forever

# ip route show
default via 10.0.0.138 dev em1  proto static  metric 1024
10.0.0.0/24 dev em1  proto kernel  scope link  src 10.0.0.1
10.0.0.0/24 dev wlp3s0  proto kernel  scope link  src 10.0.0.8

# ping 10.0.0.138
PING 10.0.0.138 (10.0.0.138) 56(84) bytes of data.
64 bytes from 10.0.0.138: icmp_seq=1 ttl=64 time=0.293 ms
64 bytes from 10.0.0.138: icmp_seq=2 ttl=64 time=2.35 ms

# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 127.0.0.1

dig www.google.com
-- or --
nslookup www.google.com