Hi I’m not too experienced with ACL’s so I come here seeking your help.
Recently we had a security audit performed and one of the items that was highlighted was that the production VLAN can see the management VLANs (ie SAN, VM host, Security Cameras). So I need to block this access with a ACL for the majority of our users but still need to exclude some members of our department.
So after doing some research I have come up with this.
interface vlan 1 ip address 10.113.0.1 255.255.0.0 ip access-group BAN_VLAN_2 in ! interface vlan 2 ip address 10.111.0.1 255.255.0.0 ! interface vlan 3 ip address 10.114.0.1 255.255.0.0 ip access-group BAN_VLAN_2 in ! ip access-list extended BAN_VLAN_2 deny ip 10.111.0.0 0.0.255.255 any permit ip any any
You can restrict that with the ACL as you did . That ACL works like any requests coming from VLAN2 (10.111.0.1) to other VLAN's 1 & 3 will get totally blocked. Make sure that you don need anyother specific communications required from vlan 2 to the other vlans 1 & 3.
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