my example: $IPTABLES -A PREROUTING -i $EXTDEV -t nat -d $DESTIP -m limit --limit 3/minute --limit-burst 3 -j ACCEPT $IPTABLES -A PREROUTING -i $EXTDEV -t nat -d $DESTIP -j DROP work with that(add ports for both etc)... it should accept anything to it's destination ip for 3 packets per minute and drop the rest... I don't have your original mail so you'll need to tweak to your needs. Thanks, ____________________________________________ George Vieira Systems Manager georgev@xxxxxxxxxxxxxxxxxxxxxx Citadel Computer Systems Pty Ltd http://www.citadelcomputer.com.au Phone : +61 2 9955 2644 HelpDesk: +61 2 9955 2698 -----Original Message----- From: Tsuyoshi Takada [mailto:acroyear@xxxxxx] Sent: Tuesday, June 10, 2003 1:04 PM To: Tsuyoshi Takada Cc: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Re: iptables limit-burst trouble Is there anyone who teach me ...? (;__;) -- Tsuyoshi Takada <acroyear@xxxxxx>