Netgear GSM4248P User Manual - Page 676

AV Line of Fully Managed Switches M4250 Series Main User Manual • Range: If you select the Range radio button, the IP ACL rule matches only if the Layer 4 destination port number is within the specified port range. The starting port, ending port, and all ports in between are a part of the Layer 4 port range. The Start Port and End Port fields identify the first and last ports that are part of the port range. They values can range from 0 to 65535. You can either select the enter the port range 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 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. • IGMP Type: If your selection from the Protocol Type menu is IGMP and you specify the IGMP type, the IP ACL rule matches the specified IGMP message type. The range is from 0 to 255. If this field is left empty, it means any. • ICMP: If your selection from the Protocol Type menu is ICMP, you can select either the Type or Message radio button: • If you select the Type radio button, note the following: - The Type and Code fields are enabled only if the protocol is ICMP. Use these fields to specify a match condition for ICMP packets: - If you specify information in the Type field, the IP ACL rule matches the specified ICMP message type. The type number can be from 0 to 255. - If you specify information in the Code field, the IP ACL rule matches the specified ICMP message code. The code can be from 0 to 255. - If these fields are left empty, it means any. • If you select the Message radio button, from the menu, select the type of the ICMP message to match with the selected IP ACL rule. Specifying a type of message implies that both the ICMP type and ICMP code are specified. The ICMP message is decoded into the corresponding ICMP type and ICMP code within the ICMP type. Manage Switch Security 676 Main User Manual