Firewall set for transparent mode, there is no three layer routing, how to carry on the remote Telnet management (as long as remote routing this IP address can reach to manage the equipment).
USG5300 can’t configure system IP after set to transparent mode, in order to realize the remote equipment TELNET management, can use the following methods:
L3 - - - - - - USG5300 (transparent mode) - - - - - - L3, can configure Sub address in L3 to solve. For example:
Configure Sub IP（126.96.36.199/30 sub）in the port which connects L3 with USG5300, configure a VLAN in USG5300, such as VLAN100, this VLAN contains USG5300 and L3 connected the two port, and configure virtual three layer Vlanif 100IP address （188.8.131.52/30）in Interface VLAN 100, this IP address routing can reach in the whole network, can realize remote manage USG5300.