From: George Liu <George.Liu@noaa.gov>
To: netfilter@lists.netfilter.org
Subject: block broadcast traffic
Date: Thu, 03 Mar 2005 09:19:06 -0600 [thread overview]
Message-ID: <42272AEA.50008@noaa.gov> (raw)
I tried to use iptables to block inbound and outbound netbios broadcast
announcement traffic of a system with IP 10.1.1.76. It seems iptables
doesn't work. Is this a limitation or rule wrong? Thanks.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -s 10.1.1.0/22 -p udp -m multiport --ports
135,136,237,138,139,445 -j REJECT
-A RH-Firewall-1-INPUT -d 10.1.1.0/22 -p udp -m multiport --ports
135,136,237,138,139,445 -j REJECT
-A RH-Firewall-1-INPUT -p udp -m multiport --ports
135,136,237,138,139,445 -j REJECT
next reply other threads:[~2005-03-03 15:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-03 15:19 George Liu [this message]
2005-03-04 15:24 ` block broadcast traffic Jason Opperisano
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