LinuxQuestions.org - broadcast pinging help

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broadcast pinging help

i am using mandrake 10.0.
we have 10 systems they are connected by a LAN.
when i make broadcast pinging it is shows only my computer IP not all the system.
but system 2 shows the all IP while i pinging.....

so what is wrong with this linux box.

[student@Simlab-node10 student]$ ping -b 10.0.0.0
PING 10.0.0.0 (10.0.0.0) 56(84) bytes of data.
64 bytes from 10.255.240.1: icmp_seq=1 ttl=255 time=1.70 ms
64 bytes from 10.255.240.1: icmp_seq=2 ttl=255 time=1.95 ms
64 bytes from 10.255.240.1: icmp_seq=3 ttl=255 time=1.76 ms
64 bytes from 10.255.240.1: icmp_seq=4 ttl=255 time=2.85 ms
64 bytes from 10.255.240.1: icmp_seq=5 ttl=255 time=1.72 ms
64 bytes from 10.255.240.1: icmp_seq=6 ttl=255 time=4.17 ms
64 bytes from 10.255.240.1: icmp_seq=7 ttl=255 time=1.69 ms
64 bytes from 10.255.240.1: icmp_seq=8 ttl=255 time=1.72 ms
64 bytes from 10.255.240.1: icmp_seq=9 ttl=255 time=1.68 ms
64 bytes from 10.255.240.1: icmp_seq=10 ttl=255 time=1.73 ms
64 bytes from 10.255.240.1: icmp_seq=11 ttl=255 time=1.68 ms

--- 10.0.0.0 ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10016ms
rtt min/avg/max/mdev = 1.684/2.062/4.173/0.744 ms
[student@Simlab-node10 student]$

please help me.....

Could you post the output of ifconfig and route?

Are you sure you have your netmask set properly? Are you experiencing any other network related problems with this machine? I take it you can ping the other machines from this system and those machines can ping this box, correct?

yes sir other machine can ping this...ur last statement is correct for me...

can u please help me...to solve the problem..

This is because you need to ping the broadcast address of your subnetwork. 10.0.0.0 really doesn't look like one.
The natural broadcast IP for a 10.0.0.0 network should be 10.255.255.255. But it actually depends on which subnetmaks you configured.

Try this to figure out:

Code:

ifconfig -a

And look for the following line:
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0

See the "Bcast" address?
Now "ping -b" the one you see there. That should work

yes great great got it right.

it's working well..thank u very much.

and when i give "netmask" address it will also pinging the same..