1

i have this statement:

access-list 101 permit ip host 30.0.10.2 host 20.0.0.3 
access-list 101 deny ip any host 20.0.0.3

but ip "20.0.0.2" blocking after assign this asl to router. why?

3

Access lists have an implicit "deny all" at the end of every ACL. If you want to allow other traffic, you need to add a third line:

access-list 101 permit ip any any

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