ZyXEL Communications P-334WT Support Notes page 25

(B) Deploying your second gateway on WAN side.
(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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