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Simple Access List Not working

trippk
Level 1
Level 1

I am creating a simple access list on a Cisco Catalyst 3550 :

access 1 permit 192.168.168.254

access 1 deny 192.168.168.35

Then I apply it to the specific port:

access 1 in

But I can still ping IP address .35 from the machine on the port in question and from the computer with that IP address, I can ping back. This is very frustrating. Can someone tell me what I am doing wrong?

Thanks In Advance,

Tripp K.

4 Replies 4

o.hassairi
Level 1
Level 1

can u copy & paste exactly the config of your acl

Not applicable

Is the net 192.168.168.0 subnetted or are the hosts on the same network?

Anike

The hosts are on the same network

glen.grant
VIP Alumni
VIP Alumni

If they are on the same subnet and switch then it's probably never even hitting the processor so the ACL will not work . ACL's are meant for traffic generally going off the subnet . If you are just trying to ping a computer on the same subnet the switch will just look in the mac table and switch it and it doesn't bother with the processor . Someone correct me if i am wrong . I am not real familiar with the 3550 so maybe i am missing something .