[NBLUG/talk] Difficult Network problem

[ShadowEyez]

Odd networking problem with Gentoo Linux 2004.2, 2.6.7, i586, stage3 install
There are 3 network interfaces, a modem (ppp0, on /dev/ttyS4), and two 10 mbit ethernet nics (eth0 and eth1) .  They are the same type of nics with the driver loaded into the kernel (NE-2000 realteks but they have different layer 2 MAC addresses), and the /etc/conf.d/net file has the lines:
iface_eth0="192.168.1.1 broadcast 192.168.1.31 netmask 255.255.255.224"
iface_eth1="192.168.1.2 broadcast 192.168.1.31 netmask 255.255.255.224"
that I set up, meaning all the ip info is right, problem is I can only get one of the interfaces to work at the same time!

I can ping each interface (192.168.1.1 and 192.168.1.2) but only one interface will work at one time.  I know the hardware and ip address are right because when I run
ifconfig eth0 down && ifconfig eth1 up
I can plug a working device into eth1 and it works.
ifconfig eth1 down && ifconfig eth0 up
I plug a working device into eth0 and it works, but when both are up THEY DO NOT WORK AT THE SAME TIME.
The ppp0 interface (modem) is set to be the default route, and adjusting the routing table does no good.  Output of the route command:
Server # route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
nas1.sr2.sonic. *               255.255.255.255 UH    0      0        0 ppp0
192.168.1.0     *               255.255.255.224 U     0      0        0 eth0
192.168.1.0     *               255.255.255.224 U     0      0        0 eth1
loopback        localhost       255.0.0.0       UG    0      0        0 lo
default         nas1.sr2.sonic. 0.0.0.0         UG    0      0        0 ppp0
The command ifconfig gives:
Server # ifconfig
eth0      Link encap:Ethernet  HWaddr 00:C0:0C:B0:57:11  
          inet addr:192.168.1.1  Bcast:192.168.1.31  Mask:255.255.255.224
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8847 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8294 errors:0 dropped:0 overruns:0 carrier:0
          collisions:3 txqueuelen:1000 
          RX bytes:1680159 (1.6 Mb)  TX bytes:5589375 (5.3 Mb)
          Interrupt:15 Base address:0xb800 

eth1      Link encap:Ethernet  HWaddr 00:C0:0C:B0:55:1B  
          inet addr:192.168.1.2  Bcast:192.168.1.31  Mask:255.255.255.224
          UP BROADCAST RUNNING 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:12 Base address:0xb400 

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:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:209.148.104.235  P-t-P:209.204.168.83  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1514  Metric:1
          RX packets:7830 errors:1 dropped:0 overruns:0 frame:0
          TX packets:8392 errors:0 dropped:12 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:5422514 (5.1 Mb)  TX bytes:1408388 (1.3 Mb)
Again, though I can ping the eth1 interface, nothing plugged into it will work.  All cables and cards are plugged in and working.  How do I get both ethernet interfaces working?

TIA
ShadowEyez
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