Sorry for very beingger question..
i just reset UTM 9 to factory default,
and config a Lan interface ip 10.10.10.1/24 , a Vlan 34 interface ip 192.168.34.3/24 , NAT,
Lan can go internet, Vlan connected to far network, and far network go ping and access web console 192.168.34.3,
but Lan 10.10.10.0/24 can not ping 192.168.34.1-254/34 which the network connected with 34.3 , no response...
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