Internet Connection, yet no loopback ping??

Matir · 07-13-2005, 08:47 AM

Quote:

Originally posted by roopunix
ok i also faced the same problem. i created the problem in my FC3

the solution was

#echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
#echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all

An excellent point. Which brings up yet another. Can you ping that machine from others on your lan?

cuschu · 07-13-2005, 09:07 AM

As I am currently at work I can't change do this

#echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
#echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all

until I get home. However, when I tried pinging the Linux box from my Windows computer the request timed out. Which is the same thing that happens when I ping www.msn.com, so it is a likely probability that the Linux box is ignoring the echo requests. I will enter the above commands when I get home and see if it has any effect.

Matir · 07-13-2005, 09:10 AM

Ok, good luck. It does sound like that might be related.

broch · 07-13-2005, 01:54 PM

I hope that you know that localhost pinging does not require NIC. Basically you are pinging kernel

cuschu · 07-13-2005, 05:45 PM

It works! Thanks for all the help. I guess when I set the security to higher it ignores echo requests.

anand_kt · 07-14-2005, 06:52 AM

Did you try pining your IP from some other machine in the LAN?