Bedienungsanleitung Netgear GS108Tv2 (Seite 224 von 302) (Englisch)

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GS108T and GS110TP Smart Switch Software Administration Manual

5-56 Managing Device Security

v1.0, April 2010

• Protocol Type. Requires a packet’s protocol to match the protocol listed here. Select a

type from the drop down menu or enter the protocol number in the available field.

• Src IP Address. Requires a packet’s source IP address to match the address listed here.

Type an IP Address in the appropriate field using dotted-decimal notation. The address

you enter is compared to a packet's source IP Address.

• Src IP Mask. Specifies the source IP address wildcard mask. Wild card masks determines

which bits are used and which bits are ignored. A wild card mask of 255.255.255.255

indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all of the bits are

important. Wildcard masking for ACLs operates differently from a subnet mask. A

wildcard mask is in essence the inverse of a subnet mask. For example, to apply the rule to

all hosts in the 192.168.1.0/24 subnet, you type 0.0.0.255 in the Source IP Mask field. This

field is required when you configure a source IP address.

• Src L4 Port. Requires a packet’s TCP/UDP source port to match the port listed here.

Click Complete one of the following fields:

• Source L4 Keyword: Select the desired L4 keyword from a list of source ports on

which the rule can be based.

• Source L4 Port Number: If the source L4 keyword is Other, enter a user-defined Port

ID by which packets are matched to the rule.

• Dst IP Address. Requires a packet’s destination port IP address to match the address

listed here. Enter an IP Address in the appropriate field using dotted-decimal notation. The

address you enter is compared to a packet's destination IP Address.

• Dst IP Mask. Specifies the destination IP address wildcard mask. Wild card masks

determines which bits are used and which bits are ignored. A wild card mask of

255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all

of the bits are important. Wildcard masking for ACLs operates differently from a subnet

mask. A wildcard mask is in essence the inverse of a subnet mask. For example, to apply

the rule to all hosts in the 192.168.1.0/24 subnet, you type 0.0.0.255 in the Source IP Mask

field. This field is required when you configure a source IP address.

• Dst L4 Port. Requires a packet’s TCP/UDP destination port to match the port listed here.

Complete one of the following fields:

• Destination L4 Keyword: Select the desired L4 keyword from a list of destination

ports on which the rule can be based.

• Destination L4 Port Number: If the destination L4 keyword is Other, enter a user-

defined Port ID by which packets are matched to the rule.

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