User Guide

Table Of Contents
174
Protocol ID Instead of selecting the name, enter the protocol ID.
Source IP AddressSelect Any if all source address are acceptable or User
Defined to enter a source address or range of source addresses.
Source IP Address ValueEnter the IP address to which the source MAC address
is to be matched and its mask (if relevant).
Source IP Wildcard MaskEnter the mask to define a range of IP addresses.
Setting a bit as 1 indicates don’t care and 0 indicates to mask that value.
Note
Given a mask of 0000 0000 0000 0000 0000 0000 1111 1111 (which
means that you match on the bits where there is 0 and don’t match on the bits
where there are 1’s). You need to translate the 1’s to a decimal integer and you
write 0 for each four zeros. In this example since 1111 1111 = 255, the mask
would be written: as 0.0.0.255.
Destination IP AddressSelect Any if all destination address are acceptable or
User Defined to enter a destination address or range of destination addresses.
Destination IP Address ValueEnter the IP address to which the destination IP
address is to be matched.
Destination IP Wildcard MaskEnter the mask to define a range of IP addresses.
Source PortSelect one of the following:
o
AnyMatch to all source ports.
o
Single PortEnter a single TCP/UDP source port to which packets are
matched. This field is active only if 800/6-TCP or 800/17-UDP is selected
in the Select from List drop-down menu.
Destination PortSelect one of the available values that are the same as the
Source Port field described above.
Note
You must specify the IP protocol for the ACE before you can enter the
source and/or destination port.
Type of ServiceThe service type of the IP packet.
o
AnyAny service type
o
DSCP to MatchDifferentiated Serves Code Point (DSCP) to match
o
IP Precedence to matchIP precedence is a model of TOS (type of service)
that the network uses to help provide the appropriate QoS commitments.
This model uses the 3 most significant bits of the service type byte in the
IP header, as described in RFC 791 and RFC 1349.
5.
Click Apply. The IPv4-Based ACE is saved to the Running Configuration file.