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1-13
Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Network Object NAT
Configuring Network Object NAT
Step 4
nat
[
(
real_ifc
,
mapped_ifc
)
]
static
{
mapped_inline_ip
|
mapped_obj
|
interface
[
ipv6
]} [
net-to-net
] [
dns
|
service
{
tcp
|
udp
}
real_port mapped_port
] [
no-proxy-arp
]
Example:
hostname(config-network-object)# nat
(inside,outside) static MAPPED_IPS service
tcp 80 8080
Configures
static NAT
for the object IP addresses. You can only
define a single NAT rule for a given object.
•
Interfaces—(Required for transparent mode) Specify the real
and mapped interfaces. Be sure to include the parentheses in
your command. In routed mode, if you do not specify the real
and mapped interfaces, all interfaces are used; you can also
specify the keyword
any
for one or both of the interfaces.
•
Mapped IP Addresses—You can specify the mapped IP
address as:
–
An inline IP address. The netmask or range for the
mapped network is the same as that of the real network.
For example, if the real network is a host, then this
address will be a host address. In the case of a range, then
the mapped addresses include the same number of
addresses as the real range. For example, if the real
address is defined as a range from 10.1.1.1 through
10.1.1.6, and you specify 172.20.1.1 as the mapped
address, then the mapped range will include 172.20.1.1
through 172.20.1.6.
–
An existing network object or group (see
).
–
interface
—(Static NAT-with-port-translation only;
routed mode) For this option, you must configure a
specific interface for the
mapped_ifc
. If you specify
ipv6
,
then the IPv6 address of the interface is used. Be sure to
also configure the
service
keyword.
Typically, you configure the same number of mapped
addresses as real addresses for a one-to-one mapping. You
can, however, have a mismatched number of addresses. See
the
“Static NAT” section on page 1-3
•
Net-to-net—(Optional) For NAT 46, specify
net-to-net
to
translate the first IPv4 address to the first IPv6 address, the
second to the second, and so on. Without this option, the
IPv4-embedded method is used. For a one-to-one translation,
you must use this keyword.
•
DNS—(Optional) The
dns
keyword translates DNS replies.
Be sure DNS inspection is enabled (it is enabled by default).
See the
“DNS and NAT” section on page 1-28
. This option is
not available if you specify the
service
keyword.
•
Port translation—(Static NAT-with-port-translation only)
Specify
tcp
or
udp
and the real and mapped ports. You can
enter either a port number or a well-known port name (such
as
ftp
).
•
No Proxy ARP—(Optional) Specify
no-proxy-arp
to disable
proxy ARP for incoming packets to the mapped IP addresses.
See the
“Mapped Addresses and Routing” section on
for more information.
Command
Purpose
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......