Configuring Device Security
Defining Access Control
Page 80
Figure 47: IPv4 Based ACL Page
The
IPv4 Based ACL Page
contains the following fields:
•
ACL Name
— Displays the specific IP based ACLs.
•
Remove ACL
— Deletes the specified ACL. The possible field values are:
–
Checked
— Deletes the ACL when user clicks the
Apply
button.
–
Unchecked
— Maintains the ACL.
•
ACE Priority
— Indicates the rule priority, which determines which rule is matched to a packet on a first-
match basis.
•
Protocol
— Creates an ACE based on a specific protocol. The available protocols are:
–
ICMP
— Internet Control Message Protocol (ICMP). The ICMP allows the gateway or destination host to
communicate with the source host. For example, reporting a processing error.
–
IGMP
— Internet Group Management Protocol (IGMP). Allows hosts to notify their local switch or router
that they want to receive transmissions assigned to a specific Multicast group.
–
IP
— Internet Protocol (IP). Specifies the format of packets and their addressing method. IP defines
addresses to packets and forwards the packets to the correct port.
–
TCP
— Transmission Control Protocol (TCP). Enables two hosts to communicate and exchange data
streams. TCP guarantees packet delivery, and guarantees packets are transmitted and received in the
order they are sent.
–
EGP
— Exterior Gateway Protocol (EGP). Permits the exchange of routing information between two
neighboring gateway hosts in an autonomous systems network.
–
IGP
— Interior Gateway Protocol (IGP). Permits the exchange of routing information between gateways
in an autonomous network.
–
UDP
— User Datagram Protocol (UDP). Communication protocol that transmits packets but does not
guarantee their delivery.