Create simple ACL CISCO

• Simple Topology

1. Create acl 

         example: create on branch router

           access-list 100 remark Branch
           access-list 100 permit ip 10.100.100.0 0.0.0.255 host 10.1.1.21
           access-list 100 permit ip 10.100.100.0 0.0.0.255 host 10.1.1.22
           access-list 100 deny   ip any any
       
          *Noted
            ip address 10.100.100.x ( ip local user branch )
            allow access to ip address 10.1.1.x ( ip server Datacenter )

       2. Access group in

           interface Vlan1
             description **Gateway LAN Branch**
             ip address 10.100.100.1 255.255.255.0
             ip access-group 100 in

       3. Access group out

           interface Vlan69
             description **Link to Datacenter**
             ip address 10.40.8.59 255.255.255.248
             ip access-group 100 out