10-12
IPv4 Access Control Lists (ACLs)
Terminology
seq-#: The term used in ACL syntax statements to represent the sequence
number variable used to insert an ACE within an existing list. The range
allowed for sequence numbers is 1 - 2147483647.
Standard ACL: This type of access control list uses the layer-3 IP criteria of
source IPv4 address to determine whether there is a match with an IPv4
packet. Except for RADIUS-assigned ACLs, standard ACLs require an
alphanumeric name or an identification number (ID) in the range of 1- 99.
See also identifier on page 10-9.
Static Port ACL: An ACL statically configured on a specific port, group of
ports, or trunk. A static port ACL filters all incoming IPv4 traffic on the
port, regardless of whether it is switched or routed.
VACL: See “VLAN ACL”.
VLAN ACL (VACL): An ACL applied to all IPv4 traffic entering the switch
on a given VLAN interface. See also “Access Control List”.
Wildcard: The part of a mask that indicates the bits in a packet’s IPv4
addressing that do not need to match the corresponding bits specified in
an ACL. See also ACL Mask on page 10-9.
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