Which operator is used in an ACL statement to match packets of a specific application?
- established
- gt
- lt
- eq
Explanation: An example of an ACL that filters for FTP is as follows:
access-list 105 permit tcp any host 10.0.54.5 eq 20
access-list 105 permit tcp any host 10.0.54.5 eq 21
The operator (eq) toward the end of the ACL lines is used to match a specific port/service that is specified immediately following the eq operator.
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