Sorry, for the long post, but I need to give a clear picture of
the problem I am facing
I know you all have seen this message many times here. But still I
have this related problem : I am running on a Class A network
(actually our network is quite small but it is a long story) with
netmask 255.255.255.0. I used to have no problem accessing my machine (which is connected through a hub and then through a switch) to my servers.But recently, I have not been able to ping the servers. My configurations have remained the same. I am running Red Hat 7.2 and Win98. My NIC is a Linksys 10/100 Card. Testing on both of these platforms confirm that I cannot ping the servers.
To eliminate any LAN problems in the equation, I have tested out with a cross cable and link it to another machine. It shows that I can ping from my Linux to a Win98 machine. Cabling problem from my machine is also eliminated as I have tested it with another machine and it works fine.
Doing a dmesg:
Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)
PCI: Found IRQ 10 for device 00:13.0
eth0: ADMtek Comet rev 17 at 0xc4867000, 00:04:5A:49:F4:F0, IRQ 10.
Doing a tcpdump that monitors my host server:
./tcpdump host 16.153.64.22
tcpdump: listening on eth0
17:03:23.212042 arp who-has 16.153.64.22 tell 16.153.64.118
17:03:24.212042 arp who-has 16.153.64.22 tell 16.153.64.118
17:03:25.212042 arp who-has 16.153.64.22 tell 16.153.64.118
I tried other protocols such as ftp and telnet and no success.
I can also confirm that there are no firewalls for these servers.
The question here is where exactly is the problem ?
a) My motherboard ?
b) The hub (Intel Express 330T) ?
c) The switch (Intel Express 460T)?
d) Or something else ?
Any help will be appreciated !