120 Dell PowerConnect 55xx Systems User Guide
FILE LOCATION:  C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell 
Contax\CxU_Switching_NetworkSecurity.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
•
Any 
— Check to use all ICMP types.
–
ICMP Code
 — Specifies an ICMP message code for filtering ICMP 
packets that are filtered by ICMP message type or ICMP message 
code. This field is available only when ICMP is selected in the 
Protocol
 field. The following options are available:
•
ICMP Code 
— Enter an ICMP code.
•
Any 
— Check to use all ICMP codes.
–
Source IP Address
 — Enter the source IP address to which addresses 
in the packet are compared. The following options are available:
•
Prefix Length 
—The number of bits that comprise the source IP 
address prefix of the subnetwork.
•
Any
 — Check to indicate that the source address is not matched.
–
Dest. IP Address
 — Enter the destination IP address to which 
addresses in the packet are compared. The following options are 
available:
•
Prefix Length 
—The number of bits that comprise the 
destination IP address prefix of the subnetwork.
•
Any
 — Check to indicate that the destination address is not 
matched. 
–
Traffic Class 
— Select one of the following options:
•
Match DSCP 
— Matches the packet DSCP value to the ACL.
•
Match IP Precedence 
— Matches the IP-precedence with the 
packet IP-precedence value. IP-precedence enables marking 
frames that exceed CIR threshold. In a congested network, frames 
containing a higher DP value are discarded before frames with a 
lower DP value. 
–
Time Range Name 
— Check to associate a time range with the ACE. 
Select one of the time ranges defined in the 
Time Range
 page. 
–
Action 
— The ACL forwarding action. The following options are 
available: 
•
Permit
 — Forwards packets that meet the ACL criteria. 
•
Deny
 — Drops packets that meet the ACL criteria.