[c-nsp] access list help

[Deric Kwok]

Hi All

I am new in cisco and trying to config the access list in my switch

My switch ip is 192.168.0.118

I am trying to block the http traffic in the host 192.168.0.115

When I do it in, I can not accces the switch !
But I can access http://192.168.0.115

Can you help what is wrong?
Can you give me examples?

access-list 120 deny   tcp any host 192.168.0.115 eq www any log
access-list 120 remark restrict www traffic to host 192.168.0.115
access-list 120 permit ip any host 192.168.0.115
(config)#interface vlan1
(config-if)#ip access-group 120 in

I also don't understand the access list only for deny 192.168.0.115.
Why it blocks me in  switch 192.168.0.118. but 192.168.0.115 is still fine?


More Questions:

ls access-list in switch same as router also?
and
Can you give me example to have access list for 3 hours?

Thank you for your help.