From: Adam Carter <Adam.Carter@optus.com.au>
To: "gentoo-user@lists.gentoo.org" <gentoo-user@lists.gentoo.org>
Subject: RE: [gentoo-user] Machine doesn't respond to broadcast ping.
Date: Thu, 25 Jun 2009 17:10:23 +1000 [thread overview]
Message-ID: <5602B0BD6D59AE4791BE83104940118DC2F3DB7D@excprdmbxw002.optus.com.au> (raw)
In-Reply-To: <4A431293.6000203@caf.com.tr>
> > I've got one machine here on the LAN which isn't responding to broadcast
> > ping. Any idea why not?
>
> You need to set icmp_echo_ignore_broadcasts to 0. Default is
> 1, mainly for dos prevention:
>
> # sysctl net.ipv4.icmp_echo_ignore_broadcasts=0
I thought it would default to off in most OSes these days, because of;
http://en.wikipedia.org/wiki/Smurf_attack
Are those other machines patched up?
next prev parent reply other threads:[~2009-06-25 7:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-25 4:34 [gentoo-user] Machine doesn't respond to broadcast ping Stroller
2009-06-25 6:00 ` Eray Aslan
2009-06-25 7:10 ` Adam Carter [this message]
2009-06-25 12:15 ` Stroller
2009-06-26 0:43 ` Adam Carter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5602B0BD6D59AE4791BE83104940118DC2F3DB7D@excprdmbxw002.optus.com.au \
--to=adam.carter@optus.com.au \
--cc=gentoo-user@lists.gentoo.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox