$success = $acl->create_entry(%args) =head2 $success = $acl->create_entry($acl_entry)

Creates an entry (i.e., rule) in a network ACL with the rule number you specified. Each network ACL has a set of numbered ingress rules and a separate set of numbered egress rules. When determining whether a packet should be allowed in or out of a subnet associated with the ACL, Amazon VPC processes the entries in the ACL according to the rule numbers, in ascending order.

Arguments:

 -rule_number          -- Rule number to assign to the entry (e.g., 100).
                          ACL entries are processed in ascending order by
                          rule number.  Positive integer from 1 to 32766.
                          (Required)
 -protocol             -- The IP protocol the rule applies to. You can use
                          -1 to mean all protocols.  See
                          http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
                          for a list of protocol numbers. (Required)
 -rule_action          -- Indicates whether to allow or deny traffic that
                           matches the rule.  allow | deny (Required)
 -egress               -- Indicates whether this rule applies to egress
                          traffic from the subnet (true) or ingress traffic
                          to the subnet (false).  Default is false.
 -cidr_block           -- The CIDR range to allow or deny, in CIDR notation
                          (e.g., 172.16.0.0/24). (Required)
 -icmp_code            -- For the ICMP protocol, the ICMP code. You can use
                          -1 to specify all ICMP codes for the given ICMP
                          type.  Required if specifying 1 (ICMP) for protocol.
 -icmp_type            -- For the ICMP protocol, the ICMP type. You can use
                          -1 to specify all ICMP types.  Required if
                          specifying 1 (ICMP) for the protocol
 -port_from            -- The first port in the range.  Required if specifying
                          6 (TCP) or 17 (UDP) for the protocol.
 -port_to              -- The last port in the range.  Required if specifying
                          6 (TCP) or 17 (UDP) for the protocol.

Alternately, can pass an existing ACL entry object VM::EC2::VPC::NetworkAcl::Entry as the only argument for ease in copying entries from one ACL to another.

Returns true on successful creation.

$success = $acl->delete_entry(%args) =head2 $success = $acl->delete_entry($acl_entry)

Deletes an ingress or egress entry (i.e., rule) from a network ACL.

Arguments:

 -network_acl_id       -- ID of the ACL where the entry will be created
 -rule_number          -- Rule number of the entry (e.g., 100).

Optional arguments:

 -egress    -- Whether the rule to delete is an egress rule (true) or ingress 
               rule (false).  Default is false.

Alternately, can pass an existing ACL entry object VM::EC2::VPC::NetworkAcl::Entry as the only argument to ease deletion of entries.

Returns true on successful deletion.

$success = replace_entry(%args) =head2 $success = replace_entry($acl_entry)

Replaces an entry (i.e., rule) in a network ACL.

Arguments:

 -network_acl_id       -- ID of the ACL where the entry will be created
                          (Required)
 -rule_number          -- Rule number of the entry to replace. (Required)
 -protocol             -- The IP protocol the rule applies to. You can use
                          -1 to mean all protocols.  See
                          http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
                          for a list of protocol numbers. (Required)
 -rule_action          -- Indicates whether to allow or deny traffic that
                           matches the rule.  allow | deny (Required)
 -egress               -- Indicates whether this rule applies to egress
                          traffic from the subnet (true) or ingress traffic
                          to the subnet (false).  Default is false.
 -cidr_block           -- The CIDR range to allow or deny, in CIDR notation
                          (e.g., 172.16.0.0/24). (Required)
 -icmp_code            -- For the ICMP protocol, the ICMP code. You can use
                          -1 to specify all ICMP codes for the given ICMP
                          type.  Required if specifying 1 (ICMP) for protocol.
 -icmp_type            -- For the ICMP protocol, the ICMP type. You can use
                          -1 to specify all ICMP types.  Required if
                          specifying 1 (ICMP) for the protocol
 -port_from            -- The first port in the range.  Required if specifying
                          6 (TCP) or 17 (UDP) for the protocol.
 -port_to              -- The last port in the range.  Only required if
                          specifying 6 (TCP) or 17 (UDP) for the protocol and
                          is a different port than -port_from.

Alternately, can pass an existing ACL entry object VM::EC2::VPC::NetworkAcl::Entry as the only argument for ease in replacing entries from one ACL to another. The rule number in the passed entry object must already exist in the ACL.

Returns true on successful replacement.

$association_id = $acl->associate($subnet_id)

Associates the ACL with a subnet in the same VPC. Replaces whatever ACL the subnet was associated with previously.

$association_id = $acl->disassociate($subnet_id)

Disassociates the ACL with a subnet in the same VPC. The subnet will then be associated with the default ACL.