Here's the contents of /etc/hosts:

ciprian@ciprian-laptop:~$ cat /etc/hosts 
127.0.0.1       localhost ciprian-laptop 
#127.0.1.1      ciprian-laptop 

# The following lines are desirable for IPv6 capable hosts 
::1     localhost ip6-localhost ip6-loopback 
fe00::0 ip6-localnet 
ff00::0 ip6-mcastprefix 
ff02::1 ip6-allnodes 
ff02::2 ip6-allrouters 

10.0.0.1        router 
10.0.0.102      ciprian-desktop




And the result of ifconfig:

ciprian@ciprian-laptop:~$ ifconfig 
docker0   Link encap:Ethernet  HWaddr 02:42:77:3e:7e:ba   
         inet addr:172.17.0.1  Bcast:0.0.0.0  Mask:255.255.0.0 
         UP BROADCAST MULTICAST  MTU:1500  Metric:1 
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:0  
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 

eth0      Link encap:Ethernet  HWaddr 00:21:cc:70:0a:6e   
         UP BROADCAST MULTICAST  MTU:1500  Metric:1 
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1000  
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 
         Interrupt:20 Memory:f3900000-f3920000  

lo        Link encap:Local Loopback   
         inet addr:127.0.0.1  Mask:255.0.0.0 
         inet6 addr: ::1/128 Scope:Host 
         UP LOOPBACK RUNNING  MTU:65536  Metric:1 
         RX packets:216528 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:216528 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1  
         RX bytes:54560384 (54.5 MB)  TX bytes:54560384 (54.5 MB) 

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00   
         inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0 
         UP BROADCAST MULTICAST  MTU:1500  Metric:1 
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1000  
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 

vmnet1    Link encap:Ethernet  HWaddr 00:50:56:c0:00:01   
         inet addr:192.168.245.1  Bcast:192.168.245.255  Mask:255.255.255.0 
         inet6 addr: fe80::250:56ff:fec0:1/64 Scope:Link 
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:1314 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1000  
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 

vmnet8    Link encap:Ethernet  HWaddr 00:50:56:c0:00:08   
         inet addr:172.16.230.1  Bcast:172.16.230.255  Mask:255.255.255.0 
         inet6 addr: fe80::250:56ff:fec0:8/64 Scope:Link 
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:955 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1000  
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 

wlan0     Link encap:Ethernet  HWaddr 08:11:96:a8:c1:94   
         inet addr:10.0.0.4  Bcast:10.0.0.255  Mask:255.255.255.0 
         inet6 addr: fe80::a11:96ff:fea8:c194/64 Scope:Link 
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
         RX packets:64924 errors:0 dropped:0 overruns:0 frame:0 
         TX packets:68234 errors:0 dropped:0 overruns:0 carrier:0 
         collisions:0 txqueuelen:1000  
         RX bytes:10381956 (10.3 MB)  TX bytes:29267371 (29.2 MB)



ciprian@ciprian-laptop:~$ ping -c 1 localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.076 ms

--- localhost ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.076/0.076/0.076/0.000 ms