Multiple IP Address And Same MAC

[dave cooper]

We have a netapp storage device and we are having intermittent problems with it.

When I look at the ARP cache on our core switch I noticed that the storage guys have created mulitple shares with the different IP address but they all point to the same MAC address

Internet  172.16.14.23          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.16          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.17          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.18          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.19          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.28          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.29          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.30          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.31          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.24          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.25          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.26          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.27          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.37          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.38          219   02a0.9945.bfec  ARPA   Vlan400

Internet  172.16.14.39          219   02a0.9945.bfec  ARPA   Vlan400

Is this allowed?

[acampbell]

Hi,

Yes - this is OK.

Many server guys use this method when a server with 1 Nic has different roles

1) Web server - ip add a.a.a.a
2) Print server - ip add a.a.a.b
3) shared drive - ip add a.a.a.c

and so on

Regards
Alex