need help on second Ethernet port (eth1) point to point connect

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I have two DELL servers with two Ethernet ports in it.
 Bith servers have CENTOS 4.5 installed.  First
Ethernet port connect to public Ethernet line and work
correctly.  Second Ethernet port I connect
point-to-point as private Ethernet (cable direct
connect without router or switch).  Private Ethernet
use IP asddress 1.1.1.1 and 1.1.1.2.

I check "ifconfig -a" and both eth0 and eth1 are up
and active.  when I tried to ping another server use
second port (private) and no response.  Does anything
I configure wrong?

Thanks.

========   info   ===  

 %ifconfig -a
eth0      Link encap:Ethernet  HWaddr
00:08:74:EA:54:64  
          inet addr:172.29.86.15  Bcast:172.29.85.255 
Mask:255.255.255.0
          inet6 addr: fe80::208:74ff:feea:5464/64
Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:471 errors:0 dropped:0 overruns:0
frame:0
          TX packets:91 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:65669 (64.1 KiB)  TX bytes:11847
(11.5 KiB)

eth1      Link encap:Ethernet  HWaddr
00:0E:2E:C8:B9:80  
          inet addr:1.1.1.1  Bcast:1.1.1.255 
Mask:255.255.255.0
          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)
          Interrupt:18 Base address:0x4c00 

%ping 1.1.1.2
PING 1.1.1.2 (1.1.1.2) 56(84) bytes of data.
>From 1.1.1.1 icmp_seq=1 Destination Host Unreachable
>From 1.1.1.1 icmp_seq=2 Destination Host Unreachable
>From 1.1.1.1 icmp_seq=3 Destination Host Unreachable

--- 1.1.1.2 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100%
packet loss, time 3015ms
, pipe 3


%telnet 1.1.1.2
Trying 1.1.1.2...
telnet: connect to address 1.1.1.2: No route to host


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