Specifications

4 Release Notes for Cisco uBR904 Cable Access Router for Cisco IOS Release 12.0(7)T
System Requirements
Determining the Software Version
To determine the version of Cisco IOS software running on your Cisco uBR904 cable access router,
log in to the Cisco uBR904 cable access router and enter the show version EXEC command:
router>show version
Cisco Internetwork Operating System Software
IOS (tm) 904 Software (UBR900-k1y5-mz), Version 12.0(7)T, RELEASE SOFTWARE
Upgrading to a New Software Release
For information about upgrading to a new software release, see the product bulletin Cisco IOS
Software Release 12.0 Upgrade Paths and Packaging Simplification located at:
http://www.cisco.com/warp/public/cc/cisco/mkt/ios/rel/120/prodlit/819_pp.htm
If you do not have an account on CCO and want general information about upgrading to a new
software release, see the product bulletin Cisco IOS Software Release 12.0 T Upgrade Paths and
Packaging Simplification (#819: 1/99) on CCO at:
Service & Support: Software Center: Cisco IOS Software: Product Bulletins: Software
Under Cisco IOS 12.0, click Cisco IOS Software Release 12.0 T Upgrade (#819: 1/99).
Feature Set Tables
The Cisco IOS software is packaged in feature sets consisting of software images—depending on
the platform. Each feature set contains a specific set of Cisco IOS features. (See Table 2.)
Release 12.0 T supports the same feature sets as Release 12.0, but Release 12.0 T can include new
features supported by the Cisco uBR904 cable access router.
The Cisco uBR904 cable access router IP routing capabilities conserve IP addresses by using
port-level multiplexed Network Address Translation (NAT) and Port Address Translation (PAT).
Dynamic Host Configuration Protocol (DHCP) is used to distribute these or real IP addresses to the
devices the Cisco uBR904 cable access router supports. NAT/PAT is bundled with DHCP server into
a feature referred to as “Easy IP.”
Caution Cisco IOS images with strong encryption (including, but not limited to, 168-bit [3DES]
data encryption feature sets) are subject to United States government export controls and have
limited distribution. Strong encryption images to be installed outside the United States may require
an export license. Customer orders may be denied or subject to delay due to United States
government regulations. When applicable, the purchaser or the user must obtain local import and use
authorizations for all encryption strengths. Contact your sales representative or distributor for more
information, or send e-mail to [e-mail].
Table 2 lists the features and feature sets supported by the Cisco uBR904 cable access router in
Cisco IOS Release 12.0 T and uses the following conventions:
• Yes—The feature is supported in the feature set.
• No—The feature is not supported in the feature set.
• In—The number in the “In” column indicates the Cisco IOS release in which the feature was first
introduced.