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From: Payal Rathod <payal-iptables@staticky.com>
To: netfilter@lists.netfilter.org
Subject: hazy table rules
Date: Sun, 31 Aug 2003 13:27:23 +0530	[thread overview]
Message-ID: <20030831075723.GA1879@linux.local> (raw)

Hi,
On a firewall, the rules I am giving are like,

iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD DENY

$IPTABLES -t nat -A POSTROUTING -j MASQUERADE

$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD -s 125.125.125.0/24 -p tcp -m tcp --dport 20 -j ACCEPT
$IPTABLES -A FORWARD -s 125.125.125.0/24 -p tcp -m tcp --dport 21 -j ACCEPT
$IPTABLES -A FORWARD -s 125.125.125.0/24 -p tcp -m tcp --dport 53 -j ACCEPT
$IPTABLES -A FORWARD -s 125.125.125.0/24 -p udp -m udp --dport 53 -j ACCEPT
$IPTABLES -A FORWARD -p icmp --icmp-type 0 -j ACCEPT
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT

Still when I view through iptraf, I find that there is traffic to
few outside port 137 of remote machines.

What is the issue?

With warm regards,
-Payal

-- 
"Visit GNU/Linux Success Stories"
http://payal.staticky.com
Guest-Book Section Updated.


             reply	other threads:[~2003-08-31  7:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-31  7:57 Payal Rathod [this message]
2003-08-31  7:35 ` hazy table rules Ralf Spenneberg
2003-09-01 16:46   ` Payal Rathod
  -- strict thread matches above, loose matches on Subject: below --
2003-08-31 12:26 Payal Rathod

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