NETGEAR GS752TP Software Administration Manual page 201

GS752TP, GS728TP, and GS728TPP Gigabit Smart Switches
• Logging. When set to Enable, logging is enabled for this ACL rule (subject to
resource availability in the device). If the access list trap flag is also enabled, this
causes periodic traps to be generated indicating the number of times this rule was hit
during the current report interval. A fixed 5-minute report interval is used for the entire
system. A trap is not issued if the ACL rule hit count is 0 for the current interval. This
field is available for a deny action.
• Match Every. Requires a packet to match the criteria of this ACL. Select Enable or
Disable. Match Every is exclusive to the other filtering rules, so if Match Every is
enabled, the other rules on the screen are not available.
• Protocol Type. Requires a packet's protocol to match the protocol listed here. Select
a type from the drop-down list, or enter the protocol number in the available field.
• Source IP Address. Requires a packet's source IP address to match the address
listed here. Enter an IP address using dotted-decimal notation. The address you enter
is compared to a packet's source IP address.
• Source IP Mask. Specifies the source IP address wildcard mask. Wildcard masks
determine which bits are used and which bits are ignored. A wildcard mask of
255.255.255.255 indicates that no bit is important. A wildcard mask 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, enter
0.0.0.255 in the Source IP Mask field. This field is required when you configure a
source IP address.
• Source L4 Port. Requires a packet's TCP/UDP source port to match the port listed
here. Complete one of the following fields:
• Source L4 Keyword: Select the desired L4 keyword from the 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.
• Destination IP Address. Requires a packet's destination port IP address to match
the address listed here. Enter an IP address using dotted-decimal notation. The
address you enter is compared to a packet's destination IP address.
• Destination IP Mask. Specifies the destination IP address wildcard mask. Wildcard
masks determine which bits are used and which bits are ignored. A wildcard 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.
• Destination 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 the list of
destination ports on which the rule can be based.
Managing Device Security
201