User Manual

C HAPTER 13 | Security Measures
Access Control Lists
– 359 –
CONFIGURING AN
EXTENDED IPV4 ACL
Use the Security > ACL (Configure ACL - Add Rule - IP Extended) page to
configure an Extended IPv4 ACL.
CLI REFERENCES
◆ "permit, deny (Extended IPv4 ACL)" on page 976
◆ "show ip access-list" on page 979
◆ "Time Range" on page 817
PARAMETERS
These parameters are displayed:
◆ Type – Selects the type of ACLs to show in the Name list.
◆ Name – Shows the names of ACLs matching the selected type.
◆ Action – An ACL can contain any combination of permit or deny rules.
◆ Source/Destination Address Type – Specifies the source or
destination IP address. Use “Any” to include all possible addresses,
“Host” to specify a specific host address in the Address field, or “IP” to
specify a range of addresses with the Address and Subnet Mask fields.
(Options: Any, Host, IP; Default: Any)
◆ Source/Destination IP Address – Source or destination IP address.
◆ Source/Destination Subnet Mask – Subnet mask for source or
destination address. (See the description for Subnet Mask on
page 357.)
◆ Source/Destination Port – Source/destination port number for the
specified protocol type. (Range: 0-65535)
◆ Source/Destination Port Bit Mask – Decimal number representing
the port bits to match. (Range: 0-65535)
◆ Protocol – Specifies the protocol type to match as TCP, UDP or Others,
where others indicates a specific protocol number (0-255).
(Options: TCP, UDP, Others; Default: TCP)
◆ Service Type – Packet priority settings based on the following criteria:
■
ToS – Type of Service level. (Range: 0-15)
■
Precedence – IP precedence level. (Range: 0-7)
■
DSCP – DSCP priority level. (Range: 0-63)
◆ Control Code – Decimal number (representing a bit string) that
specifies flag bits in byte 14 of the TCP header. (Range: 0-63)
◆ Control Code Bit Mask – Decimal number representing the code bits
to match. (Range: 0-63)
The control bit mask is a decimal number (for an equivalent binary bit
mask) that is applied to the control code. Enter a decimal number,