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adding a second NIC

I am a debian newbie...trying to add a second NIC to my machine - one with
an internal and one with an external IP.

Linux registers both NICs, because this appears in /var/log/messages:

Sep 29 19:12:13 jacktasty kernel: eth0: 3Com 3c905B Cyclone 100baseTx at
0x1400,  00:10:5a:07:29:54, IRQ 10
Sep 29 19:12:13 jacktasty kernel: eth1: 3Com 3cSOHO100-TX Hurricane at
0x1480,  00:50:04:6d:36:ef, IRQ 9

So that's good.  eth0 is working now as my external IP.  next, i tried to
manually use ifconfig assing the internal IP to eth1 with this:

# ifconfig eth1 192.168.0.1 netmask 255.255.255.0

that worked, becaue when i issued an ifconfig command, it returned:

eth0      Link encap:Ethernet  HWaddr 00:10:5A:07:29:54
          inet addr:64.81.xxx.xxx  Bcast:64.81.xxx.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4384 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3746 errors:0 dropped:0 overruns:0 carrier:0
          collisions:25 txqueuelen:100
          Interrupt:10 Base address:0x1400

eth1      Link encap:Ethernet  HWaddr 00:50:04:6D:36:EF
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          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:100
          Interrupt:9 Base address:0x1480

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:3924  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0

all appears well, but when I try to ping a local machine, I get this:

PING 192.168.0.2 (192.168.0.2): 56 data bytes
ping: sendto: Operation not permitted
ping: wrote 192.168.0.2 64 chars, ret=-1
ping: sendto: Operation not permitted
ping: wrote 192.168.0.2 64 chars, ret=-1
ping: sendto: Operation not permitted

and I can't ping my debian box from my other local machine either.  I
noticed in my /var/log/messages I had a bunch of these messages:

Sep 29 20:22:36 jacktasty kernel: Packet log: output DENY eth1 PROTO=1
192.168.0.1:8 192.168.0.2:0 L=84 S=0x00 I=3784 F=0x0000 T=64 (#4)
Sep 29 20:22:37 jacktasty kernel: Packet log: output DENY eth1 PROTO=1
192.168.0.1:8 192.168.0.2:0 L=84 S=0x00 I=3786 F=0x0000 T=64 (#4)

am i missing some steps or doing something wrong?

Thanks,
rory
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