ZyXEL Communications P-334WT Support Notes page 31

(C) To resolve this conflict, we add an option for users to allow/disallow such Triangle Route
topology in both CI command and Web configurator . You can issue this command, "sys firewall
ignore triangle all on" , to allow firewall bypass triangle route checking. In Web GUI, you can
find this option in firewall setup page.
But we would like to notify that if you allow Triangle Route, any traffic will be easily injected into
the protected network through the unprotected gateway. In fact, it's a security hole in protected
your network.
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