Block Telnet via Extended ACL Configuration On Packettracer | Networking Academy |
What is an extended access list? Extended Access Control Lists (ACLs) act as the gatekeeper of your network. They either permit or deny traffic based on protocol, port number, source, destination, and time range. The range of customization is massive.
Command Used for ACL config:
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(Network Block Configuration)
#access-list 100 deny tcp 192.168.1.0 0.0.0.255 host 192.168.3.10 eq telnet
(Host Block Configuration)
#access-list 100 deny tcp host 192.1668.2.3 host 192.168.3.10 eq telnet
(Allow any ip Configuration)
#access-list 100 permit any any
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