@Bruce Currently I havent configured the ACL, I want to ask you a little more, when my computer connects to Vlan 1, I can access the data center, but when connecting to another vlan (eg vlan 300, then can't access the data center, cant ping to the router data center ) router 1: 10.15.15.254 router data center: 10.15.15.253 Vlan 1 ->10.15.15.253 : OK Vlan 300->10.15.15.254 OK Vlan 300 ->10.15.15.253 NG Please help me this problem.
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