Juniper ACX2000 Configuration Guide

To achieve address overloading, the available IPv4 address or port range of 1 to 65,536
addresses is partitioned between Junos OS and NAT as shown below:
•
Junos OS—1 to 49,159 addresses.
•
NAPT pool—49,160 through 53,255 addresses.
•
Junos OS—53,255 through 65,535 addresses.
The number of ports reserved for NAPT pool with address overload feature is 4096.
To enable address-overloading, include the address-overload statement and the interface
statement at the [edit services nat pool nat-pool-name] hierarchy level.
The address-overload statement enables sharing of IPv4 address between Junos OS and
the NAT pool. Along with the address-overload statement, you must also specify the
interface statement so that the first available IPv4 address or port of the interface is
picked up for the NAT pool.
You can configure the address overload feature the following ways:
•
Configure an interface along with the address-overload statement as shown in the
following example.
pool p3 {
address-overload;
interface ge-0/0/1.0;
port {
range low 49160 high 53255;
}
}
In this case, the primary address on the interface is picked for the NAT pool.
•
Directly configure a /32 address as shown in the following example:
pool p4 {
address-overload;
address 45.0.0.1/32;
port {
range low 49160 high 53255;
}
}
The interface statement enables sharing of IPv4 interface address with the NAT pool
along with the port range specified in the pool.
Related
Documentation
Network Address Translation Overview on page 999•
• Network Address Port Translation Overview on page 1001
• Enabling Inline Services Interface on ACX Series on page 1008
• Understanding Service Sets on page 1028
• Service Filters in ACX Series on page 1035
• Guidelines for Applying Service Filters on page 1036
Copyright © 2017, Juniper Networks, Inc.1002
ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Specifications

General

Brand	Juniper
Model	ACX2000
Category	Network Router
Language	English