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From: cc <cc@kdtc.net>
To: Netfilter Group <netfilter@lists.netfilter.org>
Subject: icmp echo requests
Date: Mon, 29 Sep 2003 14:15:51 +0800	[thread overview]
Message-ID: <3F77CE17.30605@kdtc.net> (raw)

Hi,

I've been monitoring the NAT router with pktstat and am a little
perturbed to see quite a lot of icmp echo requests.  Now I've
setup my Linux firewall to reject icmp echo requests.

Is this the right(?)/correct/valid/appropriate thing to do?

Furthermore (just for clarification) using tcpdump, I get incoming
icmp echo requests, but no response from my firewall(good thing
right?.  This means the firewall is dropping/rejecting the
echo requests?


Here is the line from the firewall script:


iptables -A INPUT -i eth0 -p icmp --icmp-type 8 \
        -j REJECT --reject-with icmp-host-unreachable



Btw, I'm quite bothered about the pings.  It doesn't
look right.

-- 








             reply	other threads:[~2003-09-29  6:15 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-29  6:15 cc [this message]
2003-09-29  6:55 ` icmp echo requests Louie Miranda
2003-09-29 19:49 ` Jim Carter
2003-09-29 22:51   ` Michael Kearey
2003-09-30  1:26   ` cc
  -- strict thread matches above, loose matches on Subject: below --
2003-10-01 20:13 Daniel Chemko
2003-09-29  4:32 Edmund
2003-10-01 12:58 ` Jamie Harris

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