Netgear GSM4248P User Manual - Page 686

AV Line of Fully Managed Switches M4250 Series Main User Manual 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 only relevant matching condition for L4 port numbers is equal. This means that an IPv6 ACL rule matches only if the Layer 4 destination port number is equal to the specified port number or port protocol. • ICMPv6: The Type and Message fields are enabled only if the protocol is ICMPv6. Use these fields to specify a match condition for ICMPv6 packets. 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 ICMPv6. Use these fields to specify a match condition for ICMPv6 packets: - If you specify information in the Type field, the IPv6 ACL rule matches the specified ICMPv6 message type. The type number can be from 0 to 255. - If you specify information in the Code field, the IPv6 ACL rule matches the specified ICMPv6 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, note the following: - Select the type of the ICMPv6 message to match with the selected IPv6 ACL rule. Specifying a type of message implies that both the ICMPv6 type and ICMPv6 code are specified. The ICMPv6 message is decoded into the corresponding ICMPv6 type and ICMPv6 code within the ICMP type. - The ISMPv6 message types are destination-unreachable, echo-reply, echo-request, header, hop-limit, MLD-query, MLD-reduction, MLD-report, next-header, no-admin, no-route, packet-too-big, port-unreachable, router-solicitation, router-advertisement, router-renumbering, unreachable, time-exceeded, nd-na, and nd-ns. • Fragments: Either select the Enable radio button to allow initial fragments (that is, the fragment bit is asserted) or leave the default Disable radio button selected to prevent initial fragments from being used. This option is not valid for rules that match L4 information such as TCP port number, because that information is carried in the initial packet. • Flow Label: The Flow Label field is enabled only if the selection from the Protocol Type menu is ICMPv6. The flow label is 20-bit number that is unique to an IPv6 packet and that is used by end stations to signify quality-of-service handling in routers. The range for the flow label is from 0 to 1048575. Manage Switch Security 686 Main User Manual