Table Of Contents
Cisco IOS Software
Release 12.3(4)XGNew Features in Cisco IOS Software Release 12.3(4)XG
Nokia Interoperability for Cisco SOHO 96 and 836 Series Routers
CISCO-CONFIG-COPY-MIBfor CiscoWorks
L2TP Voluntary Tunneling (Client-Initiated L2TP support)
Lucent Stinger Interoperability
Cisco IOS Software Release 12.3(4)XG Memory Requirements and Product Numbers
Product bulletin no. 2430
Cisco IOS Software
Release 12.3(4)XG
This product bulletin describes the content and delivery information for Cisco IOS® Software Release 12.3(4)XG. It should be used in conjunction with the Cisco IOS Software Release 12.3T product bulletin. Cisco IOS Software Release 12.3(4)XG is a short-lived, early deployment release that will be supported in the fifth release of Cisco IOS Software Release 12.3T. This release supports the Cisco® 1700 Series modular access routers (Cisco 1701, 1710, 1711, 1712, 1720, 1721, 1751, 1751-V, and 1760), and well as the Cisco 800 and SOHO Series routers.
The platform and features delivered with this early deployment release will be incorporated immediately into the fifth release of Cisco IOS Software Release 12.3T. The timeframe for the availability of the fifth release of the Cisco IOS Software Release 12.3T train is the third calendar quarter of 2004. This timeframe is subject to change.
Future early deployment releases will be provided for maintenance support until Cisco IOS Software Release 12.3(4)XG becomes available in the fifth release of Cisco IOS Software Release 12.3T.
In addition to the supported features described in this product bulletin, more information isavailable in the release notes for Cisco IOS Software Release 12.3(4)XG.
Customers should prepare to upgrade using the migration path shown in Figure 1.
Note:
This 12.3(4)XG release only lists features that are new to the respective platforms. No new features are introduced for the ICS 7700 platforms. For these products, Release 12.3(4)XG is a maintenance release only.
Figure 1
Cisco IOS Software Release 12.3(4)XG Release Train and Migration Guide
New Features in Cisco IOS Software Release 12.3(4)XG
Table 1 lists the features delivered in the Cisco IOS Software Release 12.3(4)XG.
New Features Cisco 1701 Cisco 1710 Cisco 1711 Cisco 1712 Cisco 1720 Cisco 1721 Cisco 1751/1751-V Cisco 1760 New Hardware WIC-1SHDSL-V2No
No
No
No
No
Yes
Yes
Yes
Detailed Information
New Hardware
Single Port Multiline (Four-Wire) G.SHDSL WIC
Supported Platforms: Cisco 1721, 1751/1751-V, and 1760 Series routers; supported in `y7' legacy images, and all cross-platform images.
A single port multiline Multirate Symmetrical High-Speed Digital Subscriber Line (G.SHDSL) WAN interface card (WIC), or WIC-1SHDSL-V2. provides G.SHDSL feature support for Two-Wire Mode and Four-Wire Mode for SHDSL on the Cisco 1700 Series Modular Access Routers. The WIC-1SHDSL-V2 incorporates the 2.x firmware version and the latest hybrid circuit from Globespan.
New Software Features
Configurable "KeepAlive" Behavior for Dead Peer Detection
Supported Platforms: Cisco 831, 836, and 837 Series Routers; All Images
Dead Peer Detection (DPD) is our "keepalive" protocol for Internet Key Exchange (IKE). keepalive packets are not sent if traffic is received. This lowers the overhead associated with DPD, since on a heavily loaded network very few keepalive packets will be sent because traffic is being received on the tunnels. In addition, DPD sends keepalive packets only if there is user traffic to send (and no user traffic is received). This was done to be consistent with the relevant Request for Comments (RFC) and to try to keep keepalive traffic (and hence overhead) to a minimum.
In this release, a new command line interface (CLI) command is added. It allows the user to configure IKE DPD so that DPD sends the keepalive packets whether or not there is outbound user data. That is, as long as there is no inbound user data, the keepalive packets will besent at the configured keepalive interval.
If the new command is not configured, the DPD keepalive behavior will be unchanged from the current implementation (keepalive packets will only be sent if there is outbound user traffic and no inbound traffic).
For more detail on DPD "keepalive" protocol please see: http://www.cisco.com/en/US/products/sw/secursw/ps2308/products_user_guide_chapter09186a008015cffb.html#1018981
SMNP v3
Supported Platforms: Cisco 828, 831, 836, and 837 Series Routers; All Images
SNMP v3 including support for encrypted management traffic.
Baseline IPv6
Supported Platforms: Cisco 831, 836, and 837 Series Routers; Plus Images Only
Support of the baseline initiatives IPv6 features—providing IPv6 support to all Cisco 830 Series platforms. Further details in release notes.
Baseline QoS
Supported Platforms: Cisco 831, 836, and 837 Series Routers; All Images
Support of the baseline initiative for QoS, enhancing and testing further QoS features to support all applicable baseline advanced QoS—features in all Cisco 830 Series platforms. Further details in release notes.
Nokia Interoperability for Cisco SOHO 96 and 836 Series Routers
Interoperability with DSLAMs from Nokia, four and port line-cards in annex-B mode.
CISCO-CONFIG-COPY-MIBfor CiscoWorks
Supported Platforms: Cisco 828, 831, 836, and 837 Series Routers; All Images
This is a MIB that allows for CiscoWorks to manipulate configuration, more precisely get and put configurations to a Cisco IOS Software device.
L2TP Voluntary Tunneling (Client-Initiated L2TP support)
Supported Platforms: Cisco SOHO 91,SOHO 96, and SOHO 97 Series Routers; All Images
With support of the L2TP client feature, the Cisco SOHO 90 Series routers can initiate an L2TP session to L2TP network server (LNS) situated on the network. The Point-Point Protocol (PPP) session will be terminated on the LNS.
This feature allows for easier management since the existing PPP infrastructure concepts can be used.
Lucent Stinger Interoperability
Supported Platforms: Cisco SOHO 96, and 836 Series Routers
Interoperability with DSLAMs from Lucent with ETSI encapsulation.
Cisco IOS Software Release 12.3(4)XG Memory Requirements and Product Numbers
Tables 2 and 3 provide the feature sets, images, and memory recommendations for Cisco IOS Software Release 12.3(4)XG.
•
Cisco 1710 Security Access Router is limited to 16 MB Flash memory.
•
Security Device Manager (SDM) is not supported on Cisco 1710.
•
SDM comes by default with the images that contain security feature sets.
•
Regarding the Cross-Platform Images, see product bulletin "Cisco IOS Software Release 12.3
Mainline and 12.3T Feature Sets for Cisco 1700 Series Routers"— http://www.cisco.com/en/US/products/hw/routers/ps221/prod_bulletin09186a008016122f.html
Table 3 Cisco IOS Software Release 12.3(4)XG Cisco 1700 Legacy and Cross-Platform Feature Sets, Images, and Memory Recommendations
Download Information
Customers can download Cisco IOS Software Release 12.3(4)XG from the http://www.cisco.com software image library.

