Cisco IOS NAT Feature Matrix

Document ID: 111647

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
NAT Feature Matrix
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Introduction

This document provides the Cisco IOS^® NAT Technology Feature Matrix with the Cisco IOS platforms comparison as of Cisco IOS Software Release 15.0(1)M.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

NAT Feature Matrix

Cisco IOS NAT features and advanced features with supported platforms are shown in these tables.

Table 1 summarizes the NAT feature set and supported Cisco IOS platforms.

S.No.	NAT Features	IOS 15.0(1)M	IOS SXH / SXI	IOS 12.2(18)SXF
1	Basic NAT (static, static-port, static-network, dynamic-acl / route-map with or without overload and for interface / pool, translation-timeouts)	Yes	Yes	Yes
2	1-1 Static	Yes	Yes	Yes
3	1-1 Dynamic	Yes	Yes	Yes
4	Bi-Directional (overlapping) NAT	Yes	Yes	Yes
5	NAT performance enhancements (CEF entry/creation and and timer-wheel support)	Yes	Yes	No
6	Autoaliasing of Pool Address	Yes	Yes	Yes
7	Inside Destination NATing/TCP session Load Balancing	Yes	Yes	Yes
8	Writing NAT Translations to the Syslog	Yes	Yes	Yes
9	NAT Routemap nameshare	Yes	No	No
10	NAT Static Redundancy support	Yes	Yes	No
11	NAT Routemap reversible	Yes	No	No
12	NAT Dynamic Routemap	Yes	Yes	Yes
13	NAT Static Routemap	Yes	Yes	No
14	NAT Default Inside Server (static -> interface)	Yes	Yes	No
15	NAT Limit (basic max-entries)	Yes	Yes	Yes
16	NAT Limit (beyond max-entries)	Yes	Yes	No
17	NAT Fragmentation	Yes	Yes	Yes
18	NAT ALG IP-Fragmention (VFR)	Yes	No	No
19	NAT No-payload support (static) NAT No-Payload support (Dynamic)	Yes Supported added in 15.1(2)T	Yes No	No No
20	NAT MPLS support	Yes	No	No
21	NAT VRF support	Yes	No	No
22	NAT Match-in-vrf support	Yes	No	No
23	NAT Preserving address for PAT	Yes	Yes	Yes
24	NAT option to turn-off preserving of address for PAT	Yes	No	No
25	NAT option to turn-off flow-entry	Yes	Yes	No
26	NAT add-route option	Yes	No	No
27	NAT match-host/host number preservation	Yes	Yes	Yes
28	NAT Rotary	Yes	Yes	Yes
29	NAT non-standard port FTP	Yes	Yes	Yes
30	NAT Multicast	Yes	Yes	Yes
31	NAT – EzVPN	Yes	No	No
32	NAT DNS ALG	Yes	Yes for UDP. No for TCP	Yes for UDP. No for TCP
33	NAT PPTP ALG	Yes	Yes	Yes
34	NAT NBNS ALG	Yes	Yes	Yes
35	NAT NBDS ALG	Yes	Yes	Yes
36	NAT FTP ALG (for both passive and active FTP)	Yes	Yes	Yes
37	NAT CUSEEME ALG	Yes	Yes	Yes
38	NAT TFTP ALG	Yes	Yes	Yes
39	NAT RShell ALG	Yes	Yes	Yes
40	NAT Real Audio ALG	Yes	Yes	Yes
41	NAT VDOlive	Yes	Yes	Yes
42	NAT VXtreme ALG	Yes	Yes	Yes
43	NAT Streamworks ALG	Yes	Yes	Yes
44	ICMP	Yes	Yes	Yes
45	NAT DNS Turn on/off Knob	Yes	No	No
46	NAT LDAP append-search-result option	Yes	No	No
47	NAT-DNS-Reset-TTL	Yes	No	No
48	NAT LDAP ALG	Yes	Yes	Yes

Table 2 summarizes NAT advanced features and Cisco IOS supported platforms.

S.No.	NAT Advanced Features	IOS 15.0(1)M	IOS SXH / SXI	IOS 12.2(18)SXF
1	NAT NBAR supported ALGs like MGCP, RTSP ALG	Yes	No	No
2	NAT SCCP (Skinny) ALG (which includes the TCP segmentation support, even-port, non-standard port support)	Yes	No	No
3	NAT SIP ALGs (which includes even-port, UDP support, non-standard port support)	Yes	No	No
4	NAT H323 ALGs (which includes the TCP segmentation support, even-port, keepalive) - H225 / H245 / RAS	Yes	No	No
5	NAT User configured Portrange	Yes	No	No
6	NAT Session Border Controller (SBC) for SIP	Yes	No	No
7	NAT Media path optimization (Piggyback) for SIP	Yes	No	No
8	NAT - IPSec spi-match and non-spi-match	Yes	Yes	No
9	NAT-IPSec ISAKMP Port-Preservation	Yes	No	No
10	NAT OER	Yes	No	No
11	Stateful NAT (NAT proprietary HA)	No	No	No
12	NAT-PT (IPv6<->IPv4)	Yes	No	No
13	NAT WLAN support (Accounting and ARP-Ping)	Yes	No	No
14	NAT Symmetric Port Support	Yes	No	No
15	NAT NVI	Yes	No	No
16	NAT Multipart SDP support for SIP	Yes	No	No
17	NAT Full-range Support	Yes	No	No
18	NAT Port-Randomization support for header-traffic	Yes	No	No

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Updated: Feb 10, 2010

Document ID: 111647

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