Marko Vojinovic wrote:
> I have a small mystery on my home network.
...
> The CentOS-6.2 machine does not get any response to pings
> from the modem, but is able to ping sites beyond the modem.
>
> Could some knowledgeable soul suggest a reason for this?
Are you sure the problem is with the CentOS machine and not the router
itself?
...
OTOH, if CentOS still doesn't work, then it's most probably
the firewall
--- either the CentOS firewall or the router firewall. Check them both for
dropping ICMP packets.
I cannot think of any other problem. Can CentOS ping other machines on
your LAN?
Thanks for all the responses.
I have to confess that my error was probably at kindergarten level ...
The modem is at 192.168.1.254 ,
while my LAN is 192.168.2.0 , which the computer accesses through eth1 .
I found (from "route") that this computer was trying to send
packets for the modem through eth0, to which nothing was connected.
After I ran
[tim@grover ~]$ sudo ifconfig eth0 down
I was able to access the modem.
I looked at /etc/sysconfig/network-scripts/ifcfg-eth0
and I saw that "ONBOOT=yes" was set.
(I had copied this from my working server.)
I sort of thought that this would not be activated
unless something was connected to the ethernet socket ...
--
Timothy Murphy
e-mail: gayleard /at/
eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College Dublin