I have a very simple problem I think. I can't ping between two machines. 

I have 2 redhat 5.1 machines, one HP desktop called orange and one laptop
called apple. Connected together with an 8 port hub using RJ-45 cables.
The laptop has a Xircom card and the HP has a 3com card. 
The 2 lights light up on the hub when they're all connected.
I can ping localhost on both machines,
I can ping the network card on both machines.
I can't ping either machine from the other.

If I can ping the IP assigned to the network cards does that mean the network
cards are up and running properly?

Any reasons you can think for the above?

The rest of this mail is the output of "route" and "ifconfig" on both machines
and anything else I can think off that might help!

Some questions on the dumps below:
In the /etc/sysconfig/network file, if theres NO gateway, should the lines for
GATEWAY be
GATEWAY=""
GATEWAYDEV=""
or
GATEWAYDEV=eth0
GATEWAY=

In my /var/logs/messages file on the laptop the following lines don't look
promising...
Feb 21 14:56:37 apple kernel: loading device 'eth0'...
Feb 21 14:56:37 apple kernel: eth0: Xircom: port 0x300, irq 5, hwaddr
00:80:C7:6B:E2:6EFeb 21 14:56:37 apple cardmgr[226]: executing: './network
start eth0'
Feb 21 14:56:42 apple kernel: eth0: auto negotation failed; using 10mbs
Feb 21 14:56:42 apple kernel: eth0: media 10BaseT, silicon revision 4Feb 



------------------------------
"route" on orange
------------------------------
Kernel IP routing tableDestination     Gateway         Genmask         Flags
Metric Ref    Use Iface192.168.1.0     *               255.255.255.0   U    
0      0        3 eth0127.0.0.0       *               255.0.0.0       U    
0      0        1 lo

------------------------------
"ifconfig" on orange
------------------------------
lo        Link encap:Local Loopback            inet addr:127.0.0.1 
Bcast:127.255.255.255  Mask:255.0.0.0          UP BROADCAST LOOPBACK RUNNING 
MTU:3584  Metric:1          RX packets:65 errors:0 dropped:0
overruns:0          TX packets:65 errors:0 dropped:0 overruns:0

eth0      Link encap:Ethernet  HWaddr 00:10:4B:B4:03:C8          inet
addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0          UP
BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:0 errors:0
dropped:0 overruns:0          TX packets:56 errors:0 dropped:0
overruns:0          Interrupt:10 Base address:0xfc00 

------------------------------
/etc/sysconfig/network on orange
------------------------------
NETWORKING=yes
FORWARD_IPV4="no"
HOSTNAME="orange.isee.ie"
DOMAINNAME=isee.ie
GATEWAY=""
GATEWAYDEV=""
NISDOMAIN=""
IPX="no"
IPXINTERNALNETNUM="0"
IPXINTERNALNODENUM="0"
IPXAUTOPRIMARY="on"
IPXAUTOFRAME="on"

------------------------------
/etc/sysconfig/network-scripts/ifconfig-eth0 on orange
------------------------------
DEVICE="eth0"IPADDR="192.168.1.10"NETMASK="255.255.255.0"NETWORK="192.168.1.
0"BROADCAST=192.168.1.255ONBOOT="yes"BOOTPROTO="none"USERCTL=noIPXNETNUM_802
_2=""IPXPRIMARY_802_2="no"IPXACTIVE_802_2="no"IPXNETNUM_802_3=""IPXPRIMARY_8
02_3="no"IPXACTIVE_802_3="no"IPXNETNUM_ETHERII=""IPXPRIMARY_ETHERII="no"IPXA
CTIVE_ETHERII="no"IPXNETNUM_SNAP=""IPXPRIMARY_SNAP="no"IPXACTIVE_SNAP="no"

------------------------------
"route" on apple
------------------------------
Kernel IP routing tableDestination     Gateway         Genmask         Flags
Metric Ref    Use Iface192.168.1.0     *               255.255.255.0   U    
0      0        0 eth0127.0.0.0       *               255.0.0.0       U    
0      0        0 lo

------------------------------
"ifconfig" on apple
------------------------------
lo        Link encap:Local Loopback            inet addr:127.0.0.1 
Bcast:127.255.255.255  Mask:255.0.0.0          UP BROADCAST LOOPBACK RUNNING 
MTU:3584  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0
   
TX packets:0 errors:0 dropped:0 overruns:0eth0      Link encap:Ethernet
HWaddr
00:80:C7:6B:E2:6E          inet addr:192.168.1.11  Bcast:192.168.1.255 
Mask:255.255.255.0          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1          RX packets:0 errors:0 dropped:0 overruns:0          TX
packets:0 errors:0 dropped:0 overruns:0          Interrupt:5 Base
address:0x300


------------------------------
/etc/sysconfig/network on apple
------------------------------
NETWORKING=yesFORWARD_IPV4=noHOSTNAME="apple.isee.ie"GATEWAYDEV=eth0GATEWAY=

------------------------------
/etc/sysconfig/network-scripts/ifconfig-eth0 on apple
------------------------------
DEVICE="eth0"USERCTL=noONBOOT="yes"BOOTPROTO="none"BROADCAST=192.168.1.255NE
TWORK="192.168.1.0"NETMASK="255.255.255.0"IPADDR="192.168.1.11"IPXNETNUM_802
_2=""IPXPRIMARY_802_2="no"IPXACTIVE_802_2="no"IPXNETNUM_802_3=""IPXPRIMARY_8
02_3="no"IPXACTIVE_802_3="no"IPXNETNUM_ETHERII=""IPXPRIMARY_ETHERII="no"IPXA
CTIVE_ETHERII="no"IPXNETNUM_SNAP=""IPXPRIMARY_SNAP="no"IPXACTIVE_SNAP="no"





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