Eu tenho problemas para me conectar ao host, aqui estão os detalhes
debian é host virtual o caixa virtual
grek@debian-dev:~$ ip addr
1: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:ca:7c:4d brd ff:ff:ff:ff:ff:ff
inet6 fe80::a00:27ff:feca:7c4d/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:10:27:65:17:4f brd ff:ff:ff:ff:ff:ff
inet 192.168.56.103/24 brd 192.168.56.255 scope global eth1
inet6 fe80::a10:27ff:fe65:174f/64 scope link
valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:e6:da:23 brd ff:ff:ff:ff:ff:ff
inet 10.0.4.15/24 brd 10.0.4.255 scope global eth2
inet6 fe80::a00:27ff:fee6:da23/64 scope link
valid_lft forever preferred_lft forever
grek@debian-dev:~$ ip route
default via 10.0.4.2 dev eth2 proto static
10.0.4.0/24 dev eth2 proto kernel scope link src 10.0.4.15
192.168.56.0/24 dev eth1 proto kernel scope link src 192.168.56.103
meu ip é 192.168.56.103
grek@debian-dev:~$ ping 192.168.56.103
PING 192.168.56.103 (192.168.56.103) 56(84) bytes of data.
^C
--- 192.168.56.103 ping statistics ---
6 packets transmitted, 0 received, 100% packet loss, time 5039ms
quando eu tento pingar da máquina remota
C:\Users\g>ping 192.168.56.103
Pinging 192.168.56.103 with 32 bytes of data:
Reply from 192.168.56.103: bytes=32 time=1ms TTL=64
Reply from 192.168.56.103: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.56.103:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
Control-C
Sua interface de loopback está inativa ...
Traga isso com ifconfig lo up e isso deve corrigir isso.
O Linux normalmente usa a interface de loopback para efetuar ping em si, portanto, mesmo que o eth1 tenha o endereço IP que você está pingando, ele ainda tentará usar o loopback ao efetuar o ping.