[Bug 604] New: OUTPUT/FORWARD drop for udp not working

[bugzilla-daemon at bugzilla.netfilter.org]

http://bugzilla.netfilter.org/show_bug.cgi?id=604

           Summary: OUTPUT/FORWARD drop for udp not working
           Product: iptables
           Version: unspecified
          Platform: i386
        OS/Version: Ubuntu
            Status: NEW
          Severity: normal
          Priority: P1
         Component: iptables
        AssignedTo: laforge at netfilter.org
        ReportedBy: salvatorelionetti at yahoo.it


Hi,

i'am on an Ubuntu 9.04. This commands

iptables -I OUTPUT -p udp -j DROP
iptables -I FORWARD -p udp -j DROP
iptables -I INPUT -p udp -j DROP (just for try)

does not block a DHCP request from my PC toward the network

iptables -I OUTPUT -p tcp -j DROP

work good, freezing for example an ssh session toward the network.

Any hint?
Have a good day


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