Netgear GSM4248P User Manual - Page 675

AV Line of Fully Managed Switches M4250 Series Main User Manual The wildcard mask determines which bits are used and which bits are ignored. A wildcard mask of 0.0.0.0 indicates that none of the bits are important. A wildcard of 255.255.255.255 indicates that all of the bits are important. • Dst: In the Dst field, enter a destination IP address, using dotted-decimal notation, to be compared to a packet's destination IP address as a match criteria for the selected IP ACL rule: • If you select the IP Address radio button, enter an IP address with a relevant wildcard mask to apply this criteria. If this field is left empty, it means any. • If you select the Host radio button, the wildcard mask is configured as 0.0.0.0. If this field is left empty, it means any. The wildcard mask determines which bits are used and which bits are ignored. A wildcard mask of 0.0.0.0 indicates that none of the bits are important. A wildcard of 255.255.255.255 indicates that all of the bits are important. • Dst L4: The options are available only if the selection from the Protocol Type menu is TCP or UDP. Use the destination L4 port option to specify relevant matching conditions for L4 port numbers in the extended ACL rule. You can select either the Port radio button or the Range radio button: • Port: If you select the Port radio button, you can either enter the port number yourself or select one of the following protocols from the menu. - The destination IP TCP port protocols are Domain, Echo, FTP, FTP data, www-http, SMTP, Telnet, POP2, POP3, and BGP. - The destination IP UDP port protocols are Domain, Echo, SNMP, NTP, RIP, Time, Who, and TFTP. Each of these values translates into its equivalent port number, which is used as both the start and end of the port range. Select Other from the menu to enter a port number. If you select Other from the menu but leave the field blank, it means any. The relevant matching conditions for L4 port numbers are as follows: - Equal: The IP ACL rule matches if the Layer 4 source port number is equal to the specified port number or port key. - Not Equal: The IP ACL rule matches if the Layer 4 source port number is not equal to the specified port number or port key. - Less Than: The IP ACL rule matches if the Layer 4 source port number is a lower number than the specified port number or port key. - Greater Than: The IP ACL rule matches if the Layer 4 source port number is a higher number than the specified port number or port key. Manage Switch Security 675 Main User Manual