In this Example will open ports for need to use out of using will close it alls. This case no have inside (internal) server. Step for setting Up : Router# conf t Router(config)# access-list 100 permit tcp any any range 20 23 Router(config)# access-list 100 permit tcp any any eq 25 Router(config)# access-list 100 permit tcp any any eq 53 Router(config)# access-list 100 permit tcp any any eq 80 Router(config)# access-list 100 permit tcp any any eq 110 Router(config)# access-list 100 permit tcp any any eq 143 Router(config)# access-list 100 permit tcp any any eq 443 Router(config)# access-list 100 permit udp any any eq 53 Router(config)# access-list 100 permit udp any any eq 161 Router(config)# access-list 100 permit tcp any any eq 3306 Router(config)# access-list 100 permit icmp any any echo Router(config)# access-list 100 deny ip any any Router(config)# int f0 Router(config-if)# ip access-group 100 in This case : have inside (internal server) Server IP for this case as below : Web Serve...
Cisco Certified Network Associate Exam,640-802 CCNA All Answers ~100/100. Daily update