Restricting Outbound Telnet Access using Extended ACLs
The objective of this lab exercise is for you to learn and understand how to create and apply extended Access Control Lists to restrict Telnet access from a router or switch.
Configuring and applying extended ACLs to restrict Telnet access is a fundamental skill. Extended ACLs filter based on source and destination address, as well as Layer 4 protocols TCP and UDP. Telnet traffic sourced from the router or switch cannot be filtered using outbound interface ACLs. Instead, because the VTY lines are used, this is where . . .
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