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03-30-2006, 01:17 AM
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#1
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Member
Registered: Apr 2002
Distribution: Ubuntu, Arch, freeBSD, Slackware
Posts: 210
Rep: 
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block first icmp pakets then let them go
Hi all,
I am trying to build a set of rules (with iptables) to create a partial icmp blocking. I want to block the first 4 icmp packets and after that 4 to let them go.
Is it possible to do that?
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03-30-2006, 06:12 AM
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#2
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Member
Registered: Apr 2002
Distribution: Ubuntu, Arch, freeBSD, Slackware
Posts: 210
Original Poster
Rep:
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I tryed with -m limit, but is not quite a solution...
iptables -A INPUT -p icmp -m limit --limit 6/min -j DROP
iptables -A INPUT -p icmp -m limit --limit 2/min -j ACCEPT
iptables -A INPUT -p icmp -j DROP
but it is anoing to wait a minnute
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03-30-2006, 11:05 AM
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#3
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LQ Guru
Registered: Jul 2003
Location: Los Angeles
Distribution: Ubuntu
Posts: 9,870
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yeah, i think the "limit" match would suck in this case...
sounds like you might be better-off using the "nth" match:
http://netfilter.org/projects/patch-...l#pom-base-nth
just a thought... |
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03-31-2006, 01:18 AM
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#4
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Member
Registered: Apr 2002
Distribution: Ubuntu, Arch, freeBSD, Slackware
Posts: 210
Original Poster
Rep:
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looks like more fore me  i'll give it a try ... thx win32sux |
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