Product guide

Access Control Lists (ACLs) for the Series 3400cl and Series 6400cl Switches
Configuring and Assigning an ACL
Table 10-8. Examples of CIDR Notation for Masks
IP Address Used In an ACL
with CIDR Notation
Resulting ACL Mask Meaning
18.38.240.125/15 0.1.255.255 The leftmost 15 bits must match; the
remaining bits are wildcards.
18.38.240.125/20 0.0.15.255 The leftmost 20 bits must match; the
remaining bits are wildcards.
18.38.240.125/21 0.0.7.255 The leftmost 21 bits must match; the
remaining bits are wildcards.
18.38.240.125/24 0.0.0.255 The leftmost 24 bits must match; the
remaining bits are wildcards.
18.38.240.125/32 0.0.0.0 All bits must match.
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