Quick Reference Guide
106 ACL Commands
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deny (IP)
The deny IP-Access List Configuration mode command denies traffic if the conditions defined in
the deny statement match.
Syntax
•
deny
[
disable-port
] {
any
|
protocol
} {
any
|{
source source-wildcard
}} {
any
|{
destination
destination-wildcard
}} [
dscp
number
|
ip-precedence
number
]
•
deny-icmp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|{
destination destination-
wildcard
}} {
any
|
icmp-type
} {
any
|
icmp-code
} [
dscp
number
|
ip-precedence
number
]
•
deny-igmp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|{
destination destination-
wildcard
}} {
any
|
igmp-type
} [
dscp
number
|
ip-precedence
number
]
•
deny-tcp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|
source-port
} {
any
|{
destination
destination-wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence number
] [
flags
list-of-flags
] [
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-
wildcard
]
•
deny-udp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|
source-port
}
{
any
|{
destination destination-wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence
number
] [
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-wildcard
]
•
disable-port
— Specifies that the Ethernet interface is disabled if the condition is matched.
•
source
— Specifies the Source IP address of the packet.
•
source-wildcard
— Specifies wildcard bits to be applied to the source IP address by placing
1s in bit positions to be ignored.
•
destination
— Specifies the destination IP address of the packet.
•
destination- wildcard
— Specifies wildcard bits to be applied to the destination IP address
by placing 1s in bit positions to be ignored.
•
protocol
— Specifies the name or the number of an IP protocol. Available protocol names:
icmp, igmp, ip, tcp, egp, igp, udp, hmp, rdp, idpr, idrp, rsvp, gre, esp, ah, eigrp, ospf,
ipip, pim, l2tp, isis
. (Range: 0 - 255)
•
dscp
number
— Specifies the DSCP value.
•
ip-precedence
number
— Specifies the IP precedence value.
•
icmp-type
— Specifies an ICMP message type for filtering ICMP packets. Enter a number or
one of the following values:
echo-reply, destination-unreachable, source-quench,
redirect, alternate-host-address, echo-request, router-advertisement, router-
solicitation, time-exceeded, parameter-problem, timestamp, timestamp-reply,
information-request, information-reply, address-mask-request, address-mask-reply,
traceroute, datagram-conversion-error, mobile-host-redirect, mobile-registration-
request, mobile-registration-reply, domain-name-request, domain-name-reply, skip,
photuris
.