[Tech] 2 schede

[Aldo Podavini]

Ho un PC con 2 schede:

eth0, IP 192.168.100.210
eth1, IP 192.168.100.211

Da un altro PC lo pingo, ma sia con PING 192.168.100.210 che con PING 
192.168.100.211 risponde sempre la stessa scheda.
Perchè ?

L'output di ifconfig è:
eth0      Link encap:Ethernet  HWaddr 00:07:E9:1F:47:C4
          inet addr:192.168.100.210  Bcast:192.168.100.255  
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:174 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:17172 (16.7 Kb)  TX bytes:168 (168.0 b)
          Interrupt:10 Base address:0x1000

eth1      Link encap:Ethernet  HWaddr 00:0D:60:1B:8E:78
          inet addr:192.168.100.211  Bcast:192.168.100.255  
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:14345 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4743 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:1782254 (1.6 Mb)  TX bytes:470522 (459.4 Kb)
          Interrupt:11

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:8126 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8126 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:411524 (401.8 Kb)  TX bytes:411524 (401.8 Kb)

Dall'altro PC (avente IP 192.168.100.205, dopo aver flushato la arp 
cache, e successivamente aver fatto i due ping):

C:\arp -a
Interfaccia: 192.168.100.205 --- 0x10003
  Indirizzo Internet    Indirizzo fisico      Tipo
  192.168.100.210       00-0d-60-1b-8e-78     dinamico
  192.168.100.211       00-0d-60-1b-8e-78     dinamico

Grazie
Aldo

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