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Chapter 4: Configuring Device Security
Defining Access Control
SGE2000/SGE2000P Gigabit Ethernet Switch Reference Guide
Chapter
4
Add IP Based Rule Page
The Add IP Based Rule Page contains the following fields:
• ACL Name — Displays the user-defined IP based ACLs.
• New Rule Priority — Indicates the rule priority, which determines which rule is matched to a
packet on a first-match basis.
• Protocol — Creates an ACE based on a specific protocol.
• Source Port — Defines the TCP/UDP source port to which the ACE is matched. This field is active
only if 800/6-TCP or 800/17-UDP are selected in the Select from List drop-down menu. The
possible field range is 0 - 65535.
• Destination Port — Defines the TCP/UDP destination port. This field is active only if 800/6-TCP
or 800/17-UDP are selected in the Select from List drop-down menu. The possible field range is 0 -
65535.
• TCP Flags — Filters packets by TCP flag. Filtered packets are either forwarded or dropped.
Filtering packets by TCP flags increases packet control, which increases network security. The
possible field values are:
• ICMP — Indicates if ICMP packets are permitted on the network. The possible field values
are as
follows:
.
• ICMP Code — Indicates and ICMP message code for filtering ICMP packets. ICMP packets that
are filtered by ICMP message type can also be filtered by the ICMP message code.
• IGMP — Filters packets by IGMP message or message types.
• Source IP Address — Matches the source port IP address to which packets are addressed to the
ACE.
• Dest. IP Address — Matches the destination port IP address to which packets are addressed to the
ACE.
• Match DSCP — Matches the packet to the DSCP tag value.
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