Interface problem

[Palermo]

Hi,
I have a kind of problem,
Server that i`m using is working great nothing wrong.
after a network dip in the network the server is not reachable.
So we decided to reboot the server.

No problem so far.
Now i`m staring the failover programms. (rsync, heartbeat).
i`f note st that the interfaces names has been changed.

this give a problem with the failover programs.
Now i have

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eth0      Link encap:Ethernet  HWaddr 00:04:23:BC:52:89  
          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)

and

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eth0_rename Link encap:Ethernet  HWaddr 00:04:23:BC:52:88  
          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)

and the same on eth4 ((eth4)rename).

what i the problem?

I hope someone can help me,

thx in advanced