Clueless Network Prob

[Michael Hipp]

Red Hat 7.3 Pro server:

eth0 eepro100 192.168.0.4 (no cable connected!)
eth1 3c59x    192.168.0.5

When eth0 is up, I can ping both .4 and .5. Samba won't browse. I took eth0 
down (ifconfig etho down). I can still ping both addresses but samba will 
now browse.

Pull cable out of eth1 (machine totally off network) and I can't ping 
either. Hook cable back up, can ping both.

Move cable to eth0, can't ping. Turn eth0 up, can't ping anything.

I know the eth0 card works. Is it really normal to be able to ping both 
card's addresses through 1 interface? Why won't samba work with both up? 

Any help appreciated.

The output of ifconfig is pasted below with both up.

Thanks,
Michael

eth0      Link encap:Ethernet  HWaddr 00:C0:9F:08:CE:BF
          inet addr:192.168.0.4  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:141 errors:0 dropped:0 overruns:0 frame:0
          TX packets:85 errors:0 dropped:0 overruns:4 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:19292 (18.8 Kb)  TX bytes:12381 (12.0 Kb)
          Interrupt:11 Base address:0xa000

eth1      Link encap:Ethernet  HWaddr 00:04:76:DE:88:F8
          inet addr:192.168.0.5  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:557 errors:0 dropped:0 overruns:0 frame:0
          TX packets:598 errors:0 dropped:0 overruns:0 carrier:34
          collisions:0 txqueuelen:100
          RX bytes:73784 (72.0 Kb)  TX bytes:75757 (73.9 Kb)
          Interrupt:11 Base address:0xec00