ACL


Access Lists

Access control lists (ACLs) provide a means to filter packets by allowing a user to permit or deny IP packets from crossing specified interfaces. Just imagine you come to a fair and see the guardian checking tickets. He only allows people with suitable tickets to enter. Access lists filter network […]


How to edit access list lines ?

Most CCNA books say modifying existing ACL or inserting lines into existing ACL can’t be done….well that shows you shouldn’t believe everything you read 🙂 If the IOS image running on the router supports ACL line number, then following is the procedure you can follow. First do a show access-list at the […]