Hi.
I cannot ping any system and no system can ping me on my RHEL 4 AS. SElinux is disabled. No iptables rules are specified. Default installation. hosts.allow, deny are blank. System is HP-Compaq V50000 notebook. ifconfig shows my eth0 properly configured. mii-tool shows link ok.
Haven't seen anything like this before. Any pointers ?
Regards, NMK.
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On Friday 23 February 2007 11:43 PM, Nadeem M. Khan cobbled together some glyphs to say:
Do this as root - echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all
and then try pinging again.
Regards, BG
- -- Baishampayan Ghose b.ghose@ubuntu.com Ubuntu -- Linux for Human Beings http://www.ubuntu.com/
1024D/86361B74 BB2C E244 15AD 05C5 523A 90E7 4249 3494 8636 1B74
On 2/24/07, Baishampayan Ghose b.ghose@ubuntu.com wrote:
Its contains a 0 already. Shucks!
Regards, NMK.
Hi,
--- "Nadeem M. Khan" nadeem.m.khan@gmail.com wrote:
I cannot ping any system and no system can ping me on my RHEL 4 AS.
What hardware? Open a terminal and post output of:
/sbin/lsmod /sbin/ifconfig /sbin/route -n cat /etc/resolv.conf
Haven't seen anything like this before. Any pointers ?
Check cable?
SK
-- Shakthi Kannan http://www.shakthimaan.com
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Shakthi Kannan wrote:
Haven't seen anything like this before. Any pointers?
Check cable?
Very true. Another check, are other pcs firewalled? Is the multi-port switch bad? How does a testing cross cable respond with another pc/laptop back to back?
Regards,
Rony.
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On 2/24/07, Shakthi Kannan shakthimaan@yahoo.com wrote:
I can't copy paste the output since the notebook can't be brought in the network. But lspci shows my ethernet card all right.
/sbin/ifconfig
ifconfig shows my eth0 with the configured ip address.
/sbin/route -n
Shows my default gateway. No other routes configured.
cat /etc/resolv.conf
Not necessary here, since I can't ping any machine at all. DNS ofcourse won't resolve.
mii-tool shows link ok. Also cable is a known good one.
Regards, NMK.
On 2/26/07, jtd jtd@mtnl.net.in wrote:
That leaves only the phy on the laptop. Check on another machine wether sent packets are recieved at all and vice versa.
When I boot the lappy to windows, all is fine. I thought something would be wrong with the init scripts. So I booted into rescue mode, enabled networking, assigned the same ip address and tried to ping other hosts. No luck. Sheesh this is ridiculous. Syslog too refuses to help.
Looks like I have no option left but to reinstall. I opted for RHEL AS update 4 because it supports my SATA disk. I could downgrade to update 2 with native SATA support on my lappy turned off. Thats gonna be one helluva task....took me lots of pain to get oracle 9i up and running on this installation. :-(
Regards, NMK.
On 2/27/07, Nadeem M. Khan nadeem.m.khan@gmail.com wrote:
Is it just the ping or is it no networking at all? Is the netmask, ip address, etc correct? Are the machines you're trying to connect/ping from on the same subnet?
-
Baishampayan Ghose -
Devdas Bhagat -
jtd -
Nadeem M. Khan -
Rony -
Shakthi Kannan -
Siddhesh Poyarekar -
Vivek J. Patankar