Configuring Device Security
Defining Access Control
Cisco Small Business SFE/SGE Managed Switches Administration Guide
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4
Rules Associated with IP-ACL Page
The
Rules Associated with IP-ACL 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.
-
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.
