VM # ip addr show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 52:54:00:d9:16:b3 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.1 scope global eth0
       valid_lft forever preferred_lft forever

HOST # ping 10.0.2.15

PING 10.0.2.15 (10.0.2.15) 56(84) bytes of data.
64 bytes from 10.0.2.15: icmp_seq=1 ttl=64 time=0.045 ms
64 bytes from 10.0.2.15: icmp_seq=2 ttl=64 time=0.110 ms
64 bytes from 10.0.2.15: icmp_seq=3 ttl=64 time=0.099 ms

VM # netstat -lnpt | grep 22
tcp   0  0  0.0.0.0:22  0.0.0.0:*  LISTEN  2361/sshd

VM # ssh 127.0.0.1

VM # iptables -nvL INPUT

0  0  ACCEPT  tcp  --  *  *  0.0.0.0/0  0.0.0.0/0  tcp  dpt:22  ctstate  NEW

ifconfig -a

sudo vi /etc/network/interfaces

auto eth1
iface eth1 inet dhcp

sudo service networking restart

ifconfig -a

sudo apt-get install openssh-server