As a network administrator, you need to block all traffic from the 192.168.5.0/24 network to the 172.16.10.0/24 network while allowing all other traffic. Which access control list command will accomplish this task?
access-list 100 deny ip 192.168.5.0 0.0.0.255 172.16.10.0 0.0.0.255
To block traffic from the 192.168.5.0/24 network to the 172.16.10.0/24 network, an extended access control list (ACL) is required because filtering is based on both source and destination IP addresses. Extended ACLs use numbers 100β199. The command βaccess-list 100 deny ip 192.168.5.0 0.0.0.255 172.16.10.0 0.0.0.255β specifies the source network, the destination network, and denies all IP traffic between them. Other options either use standard ACLs, which cannot filter based on destination IP, or incorrectly specify the addresses.
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Cisco CCNA 200-301
Security Fundamentals
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