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Dell PowerConnect 55xx Systems User Guide
119
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Contax\sources\CxU_Switching_NetworkSecurity.fm
D E L L CO N F I D E N T I A L – P R E L I MI N A RY 10 / 3 0 /1 3 - FO R PR O O F O N LY
The currently-defined rules for the selected ACL are displayed.
2
To add a rule click
Add ACE
.
3
Select a user-defined ACL for which a rule is being created.
4
Enter the following fields:
–
New Rule Priority
— Enter the ACE priority that determines which
ACE is matched to a packet, based on a first match.
–
Protocol Select from List
— Select to create an ACE, based on a
specific protocol. The following options are available:
• TCP — Transmission Control Protocol (TCP). Enables two
hosts to communicate and exchange data streams. TCP
guarantees packet delivery, and guarantees packets are
transmitted and received in the order the are sent.
• UDP — User Datagram Protocol (UDP). Communication
protocol that transmits packets but does not guarantee their
delivery.
• ICMP — Internet Control Message Protocol (ICMP). The
ICMP allows the gateway or destination host to communicate
with the source host. For example, to report a processing error.
• IPV6 — Matches the packet to the IPV6 protocol.
–
Protocol ID To Match
— Enter a protocol.
–
Any
— Check to use any protocol.
–
Source Port
— Enter the TCP/UDP source port. Enter either a
Single
,
Range
or select
Any
to include all ports.
–
Destination Port
— Enter the TCP/UDP destination port. Enter
either a
Single
,
Range
or select
Any
to include all ports.
–
TCP Flags
— To use TCP flags, check the
TCP Flag
checkbox and
then check the desired flag(s).
–
ICMP
— Specifies an ICMP message type for filtering ICMP packets.
This field is available only when ICMP is selected in the
Protocol
field. The following options are available:
•
Select from List
— Select an ICMP type from the list.
•
ICMP Type
— Enter the ICMP type.