C
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NTERFACE
4-122
permit, deny (Extended ACL)
This command adds a rule to an Extended IP ACL. The rule sets a filter
condition for packets with specific source or destination IP addresses,
protocol types, source or destination protocol ports, or TCP control codes.
Use the no form to remove a rule.
Syntax
[no] {permit | deny} [protocol-number | udp]
{any | source address-bitmask | host source}
{any | destination address-bitmask | host destination}
[precedence precedence] [tos tos] [dscp dscp]
[source-port sport [end]] [destination-port dport [end]]
[no] {permit | deny} tcp
{any | source address-bitmask | host source}
{any | destination address-bitmask | host destination}
[precedence precedence] [tos tos] [dscp dscp]
[source-port sport [
end]] [destination-port dport [end]]
[control-flag control-flags flag-bitmask]
• protocol-number – A specific protocol number. (Range: 0-255)
• source – Source IP address.
• destination – Destination IP address.
• address-bitmask – Decimal number representing the address bits to
match.
• host – Keyword followed by a specific IP address.
• precedence – IP precedence level. (Range: 0-7)
• tos – Type of Service level. (Range: 0-15)
• dscp – DSCP priority level. (Range: 0-63)
• sport – Protocol
17
source port number. (Range: 0-65535)
• dport – Protocol
17
destination port number. (Range: 0-65535)
• end – Upper bound of the protocol port range. (Range: 0-65535)
• control-flags – Decimal number (representing a bit string) that
specifies flag bits in byte 14 of the TCP header. (Range: 0-63)
• flag-bitmask – Decimal number representing the code bits to match.
(Range: 0-63)
17. Includes TCP, UDP or other protocol types.
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