disable broadcast ping reply

disable broadcast ping reply

Post by tobias.gei.. » Fri, 24 Nov 2000 04:00:00



Hi,

i don't want my Linux to answer broadcast pings.

How can i do this?

thank you, for hints

Tobias

Sent via Deja.com http://www.deja.com/
Before you buy.

 
 
 

disable broadcast ping reply

Post by Scott Nold » Sat, 25 Nov 2000 13:40:24



> Hi,

> i don't want my Linux to answer broadcast pings.

> How can i do this?

> thank you, for hints

> Tobias

> Sent via Deja.com http://www.deja.com/
> Before you buy.

echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all

--
Never do Windows again with  |  Scott M. Nolde

glaze!                       |  
11:40pm up 1 day, 1:47, 2 users, load average: 1.03, 1.04, 1.00

 
 
 

disable broadcast ping reply

Post by Alain Wenmaeker » Sat, 25 Nov 2000 04:00:00


Quote:> > i don't want my Linux to answer broadcast pings.

> > How can i do this?

> > thank you, for hints

> echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all

> --

I would do
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts

Grtz

 
 
 

1. DUP! replies to broadcast pings

Hi,

I have a very simple question. Is it normal for Linux to receive duplicate
replies to broadcast ping?

ping 1.1.1.255
64 bytes from 1.1.1.1: icmp_seq=1 ttl=64 time=0 ms
64 bytes from 1.1.1.2: icmp_seq=1 ttl=255 time=0 ms (DUP!)
64 bytes from 1.1.1.3: icmp_seq=1 ttl=255 time=0 ms (DUP!)
64 bytes from 1.1.1.4: icmp_seq=1 ttl=255 time=0 ms (DUP!)

The only exception is single reply from originated host itself.

So, is it normal for ping implementation in Linux or I should check my network
configuration?
Thanks in advance!

BR,
Mihails

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