I want Project-1 and Project-2 have access to server VLAN only.
Accees list extented Project 1
deny IP 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255------------- Deny System VLAN
deny IP 192.168.2.0 0.0.0.255 192.168.3.0 0.0.255---------------Deny project 2 VLAN
permit IP any any
But problem is that system VLAN should access to all VLAN,but no VLAN should access system VLAN.With this access list the access of system VLAn to other Vlan is blocked.Can any body suggest me something.We are using 4500 as L3 switch and 2960 as L2.............
...at the end of each of the ACL, to overirde the implied 'deny any any'.
As the access-group statement is inbound, then the suggested ACLs should work. ACL 102, will deny VLANs 1 and 2 in. Likewise, ACLs 103 and 104 do not deny the systems VLAN, so the suggested 'permit any any' will let that traffic in.
So use the following:
access-list ext 102 deny ip 192.168.0.0 0.0.0.255 192.168.1.0 0.0.0.255 remark deny server
ACLs are stateless and communication is bidirectional in IP so you'll need to permit return traffic from VLAN3 and VLAN4 for VLAN2 to access them and deny traffic originated in VLAN 3 and VLAN 4.
For return TCP traffic you have the established keyword, for ICMP you'll need to permit the echo-replies and time-exceeded and port-unreachable at least and for UDP you'll have to permit the possible UDP services reply( like DNS 53,DHCP 67).
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