SMC Networks TigerAccess SMC7816M - Manual (Page 209)

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Web – Click Security, ACL, Mask Configuration. Click Edit for one of the
basic mask types to open the configuration page.
Figure 8-5 Selecting ACL Mask Types
CLI – This example creates an IP ingress mask, and then adds two rules.
Each rule is checked in order of precedence to look for a match in the
ACL entries. The first entry matching a mask is applied to the inbound
packet.
Configuring an IP ACL Mask
This mask defines the fields to check in the IP header.
Command Usage
Masks that include an entry for a Layer 4 protocol source port or
destination port can only be applied to packets with a header length of
exactly five bytes.
Command Attributes
• Source/Destination Address Type – Specifies the source or
destination IP address. Use “Any” to match any address, “Host” to
specify a host address (not a subnet), or “IP” to specify a range of
addresses. (Options: Any, Host, IP; Default: Any)
Console(config)#access-list ip mask-precedence in 24-8
Console(config-ip-mask-acl)#mask host any 24-9
Console(config-ip-mask-acl)#mask 255.255.255.0 any
Console(config-ip-mask-acl)#