Two Questions About ACL

Hi WDNJSQ
1. Check the configuration. It is found that ACL 2001 has been invoked. You need to delete the traffic-filter vlan 10 inbound acl 2001 command, and then run the undo rule 5 and undo rule 10 commands to delete the two commands to be deleted.
2. For Layer 3, ACLs are used. For example:
vlan 2:192.168.2.0/255.255.255.0
vlan 3:192.168.3.0/255.255.255.0
vlan 4:192.186.4.0/255.255.255.0
VLAN2, VLAN3, and VLAN4 cannot communicate with each other.
acl number 3002
rule deny ip source 192.168.2.0 0.0.0.255 destination 192.168.3.0 0.0.0.255
rule deny ip source 192.168.2.0 0.0.0.255 destination 192.168.4.0 0.0.0.255
acl number 3003
rule deny ip source 192.168.3.0 0.0.0.255 destination 192.168.2.0 0.0.0.255
rule deny ip source 192.168.3.0 0.0.0.255 destination 192.168.4.0 0.0.0.255
acl number 3004
rule deny ip source 192.168.4.0 0.0.0.255 destination 192.168.2.0 0.0.0.255
rule deny ip source 192.168.4.0 0.0.0.255 destination 192.168.3.0 0.0.0.255
Run the traffic-filter command to apply the ACL to the VLAN
traffic-filter vlan 2 inbound acl 3002
traffic-filter vlan 3 inbound acl 3003
traffic-filter vlan 4 inbound acl 3004
I hope it helps!