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August 9, 1999
These release notes for the Cisco uBR904 cable access router support Cisco IOS Release 11.3 NA, up to and including 11.3(11)NA. These release notes are updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
For a list of the software caveats that apply to Release 11.3 NA, see "Caveats" section and Caveats for Cisco IOS Release 11.3 T that is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
Use these release notes with Release Notes for Cisco IOS Release 11.3 and Release Notes for Cisco uBR7200 Series for Cisco IOS Release 11.3 NA located on CCO and the Documentation CD-ROM.
These release notes describe the following topics:
The Cisco uBR904 cable access router gives residential or small office/home office (SOHO) subscribers, high-speed Internet or Intranet access by using a shared two-way cable system and IP backbone network. The router connects computers and other customer premise devices at a subscriber site to the service provider's hybrid/fiber coax (HFC) and IP backbone network.
The Cisco uBR904 cable access router interoperates with any bidirectional, DOCSIS-qualified Cable Modem Termination System (CMTS). The Cisco uBR904 ships from the Cisco factory with a Cisco Internetwork Operating System (IOS) software image stored in nonvolatile memory (NVRAM) that supports DOCSIS-compliant bridging or routing data operations. The Cisco uBR904 functions as a cable modem-a modulator/demodulator at a subscriber site to convey data communications on the cable television system.
Based on the feature licenses your company purchased, you can download other Cisco IOS images from CCO. You can configure each Cisco uBR904 cable access router in your network to support special operating modes based on your cable plant's service offering and the practices in place for your network. The Cisco uBR904 can function as an advanced router, providing wide area network (WAN) data connectivity in a variety of configurations.
This section describes the system requirements for Release 11.3(11)NA:
| Feature Set | Image Name | Required Flash Memory | Required DRAM Memory | Runs From | Feature Status |
|---|---|---|---|---|---|
| IP Routing Standard Feature Sets | |||||
MCNS Base | ubr900-y4-mz | 4 MB Flash | 8 MB DRAM | RAM | Added in Release 11.3(4)NA |
MCNS Base with Privacy | ubr900-k1y4-mz | 4 MB Flash | 8 MB DRAM | RAM | Encryption image added in Release 11.3(5)NA |
To support data features sets that involve encryption/decryption, Cisco IOS images must contain encryption/decryption software at both the CMTS and the Cisco uBR904. Both the CMTS router and the Cisco uBR904 must be enabled and configured per the software feature set. Should you have the Cisco uBR7200 series equipment, also reference applicable release notes for the corresponding images at the headend that support the feature set.
There are no new hardware features supported by the Cisco uBR904 for Cisco IOS Release 11.3 NA.
To determine the version of Cisco IOS software running on your Cisco uBR904 cable access router, log in to the router and enter the show version EXEC command:
router>show version
Cisco Internetwork Operating System Software
IOS (tm) 904 Software (UBR904-y4-mz), Version 11.3(11)NA...
For information about upgrading to a new software release, see Cisco IOS Software Release 11.3 Upgrade Paths and Packaging Simplification product bulletin on CCO at:
Service & Support: Product Bulletins: Software
Under Cisco IOS 11.3, click Cisco IOS Software Release 11.3 Upgrade Paths (#703: 12/97).
This product bulletin does not contain information specific to Cisco IOS Release 11.3 NA, but provides generic upgrade information that may apply to Cisco IOS Release 11.3 NA.
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.
| Feature Set | Feature Set Matrix Term | Software Image | Platforms |
|---|---|---|---|
MCNS Base | Basic1 | uBR900-y4-mz | Cisco uBR904 |
MCNS Base with Privacy | Basic, Baseline Privacy2 | uBR900-k1y4-mz | Cisco uBR904 |
| 1This feature is offered in the Basic feature set. 2This feature is offered in the encryption feature sets which consist of 56bit DES (k1) data encryption feature sets. |
 | Caution Cisco IOS images with strong encryption (including, but not limited to 56-bit 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 are likely to require an export license. Customer orders may be denied or subject to delay due to United States government regulations. When applicable, you must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com. |
Table 3 lists the features and feature sets supported by Cisco IOS Release 11.3(11)NA for the Cisco uBR904 cable access router and uses the following conventions to identify features:
| Feature Sets | |||
|---|---|---|---|
| Feature | In | MCNS Base | MCNS Base with Privacy |
Cable Device MIB | (4) | Yes | Yes |
Cisco Standard MIBs | (4) | Yes | Yes |
Full and MCNS-compliant Bridging | (4) | Yes | Yes |
Network Address Translation and Port Address Translation (NAT/PAT) | (4) | Yes | Yes |
Radio Frequency Interface (RFI) MIB | (4) | Yes | Yes |
Routing (RIP V2) | (4) | Yes | Yes |
The following sections list the new features supported by the Cisco uBR904 cable access router in Cisco IOS Release 11.3 NA.
There are no new features supported by the Cisco uBR904 in Cisco IOS Release 11.3(11)NA.
The following new features are supported by the Cisco uBR904 beginning in Cisco IOS Release 11.3(5)NA.
The DOCSIS Baseline Privacy feature is based on the DOCSIS Baseline Privacy Interface Specification. It provides data privacy across the HFC network by encrypting traffic flows between the Cisco uBR904 and the cable operator's CMTS.
Baseline Privacy security services are defined as a set of extended services within the DOCSIS MAC sublayer. Two new MAC management message types, BPKM-REQ and BPKM-RSP are employed to support the Baseline Privacy Key Management (BPKM) protocol.
The BPKM protocol does not use authentication mechanisms such as passwords or digital signatures; it provides basic protection of service by ensuring that a cable modem, uniquely identified by its 48-bit IEEE MAC address, can only obtain keying material for services it is authorized to access. The Cisco uBR904 is able to obtain two types of keys from the CMTS: the Traffic Exchange Key (TEK), which is used to encrypt and decrypt data packets, and the Key Exchange Key (KEK), which is used to the decrypt the TEK.
For more information on this feature, refer to the DOCSIS Baseline Privacy Interface Specification (SP-BPI-IO1-970922).
The following new feature was introduced in the Cisco uBR904 for Cisco IOS Release 11.3(4)NA:
The Cable Device MIB is for DOCSIS-compliant cable modems and Cable Modem Termination Systems (CMTS). The Cable Device MIB records statistics related to the configuration and status of the cable modem. Statistics include an events log and device status. The following list details the components of the Cable Device MIB:
The Cable Device MIB is very similar to the RFI MIB in that both allow access to statistics; they are different in that the Cable Device MIB reports statistics on the Cisco uBR904 cable access router, and the RFI MIB reports statistics on the radio frequency transmissions over the cable television line.
The Cisco Standard MIBs consist of the following components:
Network Address Translation (NAT):
Routing protocols will run on the Ethernet interface instead of the cable interface, and all packets received are translated to the correct private network IP address and routed out the Ethernet interface. This eliminates the need to run RIP on the cable interface.
To implement the Cisco uBR904 cable access router, the Ethernet interface is configured with an "inside" address and the cable interface is configured with an "outside" address. The Cisco uBR904 cable access router also supports configuration of static connections, dynamic connections, and address pools.
Full and DOCSIS-Compliant Bridging for the Cisco uBR904 cable access router complies with the DOCSIS standards for interoperable cable modems.
The Radio Frequency Interface (RFI) MIB module is for DOCSIS-compliant radio frequency interfaces in cable access routers and cable access router termination systems. On the cable access router, RFI MIB entries provide:
The RFI MIB includes tables describing both the CMTS and the cable modem side of the cable interface. All cable modem tables are implemented.
A routing configuration for the Cisco uBR904 cable access router is most likely used when the cable access router is being added to an existing personal computer network. If set to support routing mode, the Cisco uBR904 cable access router will automatically configure the headend's IP address as its IP default gateway. When the IP host-routing is being configured, this automatic configuration of the headend's IP address as its IP default gateway will allow the Cisco uBR904 cable access router to send packets not intended for the Ethernet interface to the headend.
RIP V2 routing is useful for small internetworks in that it enables optimization of NIC-assigned IP addresses by defining VLSMs for network addresses, and it allows CIDR addressing schema.
The following section contains important notes about Cisco IOS Release 11.3 that may apply to the Cisco uBR904.
Prior to Cisco IOS Release 11.1(13) and 11.2(8), the atm multipoint-signaling command was used on the main interface and affected all subinterfaces. For Release 11.1(13), 11.2(8), and later releases (including Release 11.3), explicit configuration on each subinterface is required to obtain the same functionality. See caveat CSCdj20944, which is described as follows:
The atm multipoint-signaling interface command is currently only available on the main ATM interface. The effect is that signaling behavior (point-to-point or point-to-multipoint) for all clients on all subinterfaces is determined by the command on the main interface.
Clients on different subinterfaces can have different behavior. Specifically, RFC 1577 requires point-to-point, and PIM allows point-to-multipoint. The command should be on a per-subinterface basis.
Enable the atm multipoint-signaling command on all subinterfaces that require it. Previously, you only needed to enable the command on the main interface.
End of Engineering (EOE) means there are no more regularly scheduled maintenance releases. The following maintenance releases scheduled on the EOE date are only available through CCO and Field Service Operations—not through manufacturing:
EOS and EOE releases are subject to change. For the most up-to-date information on the status of EOS or EOE, see End of Sales and End of Engineering for Cisco IOS Software Releases product bulletins on CCO.
Ongoing support for functionality in Releases 11.3, 11.3 NA, and 11.3 T is available in Cisco IOS Release 12.0(3)T and later maintenance releases of Cisco IOS Release 12.0.
On CCO, click on this path:
Service & Support: Product Bulletins: Software
Under Cisco IOS 11.3, click on End of Sales and End of Engineering for Cisco IOS Software Releases 11.3 and 11.3 T (#847: 12/98) or Cisco IOS Software 11.3 NA EOS and EOE (#849:12/98)
Cisco IOS Release 11.3(8)T was deferred to Release 11.3(8)T1 on all software images to incorporate corrections to the following caveats:
For more information on these caveats, see Bug Navigator II. Bug Navigator II is available at http://www.cisco.com/support/bugtools or on CCO at:
Service & Support: Online Technical Support: Software Bug Toolkit: Bug Navigator II.
Whenever IPX routing is enabled, the Token Ring interface resets.
Cisco's implementation of AppleTalk does not forward packets with local-source and destination network addresses. This behavior does not conform to the definition of AppleTalk in Apple Computer's Inside AppleTalk publication. However, this behavior is designed to prevent any possible corruption of the AppleTalk Address Resolution Protocol (AARP) table in any AppleTalk node that collects MAC addresses.
Due to a production problem, many source-route bridging commands were omitted from the printed version of the Cisco IOS Software Command Summary (78-4746-XX). For documentation of all source-route bridging commands, see Bridging and IBM Networking Command Reference (78-4743-XX). You can also obtain the most current documentation on CCO or on the Documentation CD-ROM.
A new authorization feature that allows you to separately configure and authorize Multilink PPP was added in Cisco IOS Release 11.3(1). This feature can cause MLP authorization to fail in TACACS+ servers that do not include the relevant authorization permissions in the configuration.
For TACACS+, add the following attribute-value (AV) pair for all users who are allowed to negotiate Multilink PPP:
service = ppp protocol = multilink {
Note the following information regarding the LAN Emulation (LANE) feature in Cisco IOS Release 11.3:
Cisco is conducting an internal review of the build and distribution processes associated with its 40-bit Cisco IOS cryptographic products. To provide seamless access to Cisco IOS 40-bit encryption capability, Cisco will provide access to the most current 40-bit encryption images, beginning with Cisco IOS Release 11.2 (12), 11.2(12)P, and 11.3(2).
The following 40-bit encryption images are unavailable indefinitely:
This review is not related to any new or previously unreported caveats. The information gathered in the review will be used to implement new automated development and order-processing applications.
Old Cisco Management Information Bases (MIBs) will be replaced in a future release. OLD-CISCO-* MIBS are currently migrated into more scalable MIBs—without affecting existing Cisco IOS products or NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in the following table:
| Deprecated MIB | Replacement |
|---|---|
OLD-CISCO-APPLETALK-MIB | RFC1243-MIB |
OLD-CISCO-CHASSIS-MIB | ENTITY-MIB |
OLD-CISCO-CPUK-MIB | In Development |
OLD-CISCO-DECNET-MIB |
|
OLD-CISCO-ENV-MIB | CISCO-ENVMON-MIB |
OLD-CISCO-FLASH-MIB | CISCO-FLASH-MIB |
OLD-CISCO-INTERFACES-MIB | IF-MIB CISCO-QUEUE-MIB |
OLD-CISCO-IP-MIB |
|
OLD-CISCO-MEMORY-MIB | CISCO-MEMORY-POOL-MIB |
OLD-CISCO-NOVELL-MIB | NOVELL-IPX-MIB |
OLD-CISCO-SYS-MIB | (Compilation of other OLD* MIBS) |
OLD-CISCO-SYSTEM-MIB | CISCO-CONFIG-COPY-MIB |
OLD-CISCO-TCP-MIB | CISCO-TCP-MIB |
OLD-CISCO-TS-MIB |
|
OLD-CISCO-VINES-MIB | CISCO-VINES-MIB |
OLD-CISCO-XNS-MIB |
|
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
This section only contains open and resolved caveats for the current Cisco IOS maintenance release.
All caveats in Releases 11.3 and 11.3 T are also in Release 11.3(11)NA.
For information on caveats in Cisco IOS Release 11.3, see "Important Notes and Caveats for Release 11.3" section in Cross-Platform Relea se Notes for Cisco IOS Release 11.3 on CCO and the Documentation CD-ROM. These release notes list severity 1 and 2 caveats affecting all maintenance releases.
For information on caveats in Cisco IOS Release 11.3 T, refer to the Caveats for Cisco IOS Release 11.3 T on CCO and the Documentation CD-ROM.
This section describes possibly unexpected behavior by Release 11.3(11)NA. Unless otherwise noted, these caveats apply to all 11.3 releases and platforms up to and including Release 11.3(11)NA.
This section describes possibly unexpected behavior by Release 11.3(10)NA. Unless otherwise noted, these caveats apply to all 11.3 releases up to and including Release 11.3(10)NA. For additional caveats applicable to Release 11.3(10)NA, see the caveats sections for later 11.3 releases. The caveats for later releases precede this section.
All the caveats listed in this section are resolved in release 11.3(11)NA.
%APPN-3-logcsCS_XXXXIP11_LOGMSG_01: CS - Sending Alert to MS, sense_code = 83E0001,
proc_name = XXXXIP32, port_name = HMAC04, ls_name = @LS00289
%APPN-3-logcsCS_XXXXIP11_LOGMSG_03: CS - Associated outbound XID data in alert (length
>= 29): %APPN-3-Error:
327307700000000000F7C1000000008000010B510005000000000007000E11F4C4C5C2E5D4E4F0F04BD5D5C
3C9D7F0F110380037110C0804F1F2F0F0F0F00908F0F0F0F0F0F0F01406C3C9E2C3D640C1D7D7D540D5D561
C4D3E4D90F0FC3C9E2C3D640C1D7D7D540D5D52207000000083E0001
%APPN-3-logcsCS_XXXXIP11_LOGMSG_05: CS - Associated inbound XID data in alert (length
>= 29): %APPN-3-Error:
326705D56F010000B00810000000000000010B410005B800000000070010370023110C0804F0F3F0F0F0F00
F06D4E240E2D5C140E2C5D9E5C5D90908F0F0F0F0F0F0F0131103100010F0F0F0F0F0F0F0F0F0F0F0F0F00E
0FF4C4C5C2E5D4E4F0F04BC3E3F5F6C6
----eth---2500---serial---2500---eth---
[no] speed {10 | 100 | auto}
00:06:39: -Traceback= 601C9C58 602015E0 60556558 60553958 6021D034 6021D020 00:06:39:
Fair Queue:packet not initialized properly: 0, 0 , 38 00:06:39: -Traceback= 601C9C58
602015E0 60556558 60553958 6021D034 6021D020 00:06:39: Fair Queue:packet not
initialized properly: 0, 0 , 38 00:06:39: -Traceback= 601C9C58 602015E0 60556558
60553958 6021D034 6021D020 00:06:40: Fair Queue:packet not initialized properly: 0, 0 ,
38 00:06:40: -Traceback= 601C9C58 602015E0 60556558 60553958 6021D034 6021D020
00:06:40: Fair Queue:packet not initialized properly: 0, 0 , 38 00:06:40: -Traceback=
601C9C58 602015E0 60556558 60553958 6021D034 6021D020 00:06:40: Fair Queue:packet not
initialized properly: 0, 0 , 38 00:06:40: -Traceback= 601C9C58 602015E0 60556558
60553958 6021D034 6021D020 00:06:40: Fair Queue:packet not initialized properly: 0, 0 ,
38 00:06:40: -Traceback= 601C9C58 602015E0 60556558 60553958 6021D034 6021D020
00:06:40: Fair Queue:packet not initialized properly: 0, 0 , 38 00:06:40: -Traceback=
601C9C58 602015E0 60556558 60553958 6021D034 6021D020
The following sections describe related documentation available for the Cisco uBR904 cable access routers. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on CCO and the Documentation CD-ROM.
Use these release notes with these documents:
The following documents are specific to Release 11.3 NA and are located on CCO and the Documentation CD-ROM:
These documents are available for the Cisco uBR904 on CCO and the Documentation CD-ROM:
On CCO:
Service & Support: Documentation Home Page: Cisco Product Documentation: Broadband/Cable Solutions: Cisco uBR900 Series Cable Access Routers
On the Documentation CD-ROM:
Cisco Product Documentation: Broadband/Cable Solutions: Cisco uBR900 Series Cable Access Routers
Feature modules describe new features supported by Release 11.3 and are an update to the Cisco IOS documentation set. Feature modules consist of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are only available online. The feature module information is incorporated in the next printing of the Cisco IOS documentation set.
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. These documents are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set: configuration guides and command references.
On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Configuration Guide Master Index or Command Reference Master Index
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Configuration Guide Master Index or Command Reference Master Index
Table 5 describe the contents of the Cisco IOS Release 11.3 software documentation set. The document set is available in electronic form, and also in printed form upon request.
On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3
| Books | Chapter Topics |
|---|---|
| Configuration Fundamentals Overview |
| IP Addressing |
| AppleTalk |
| Apollo Domain |
| Wide-Area Networking Overview |
| AAA Security Services |
| Business Applications and Scenarios |
| Switching Paths for IP Networks |
| Transparent Bridging |
|
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For service and support for a product purchased from a reseller, contact the reseller, who offers a wide variety of Cisco service and support programs described in "Service and Support" in Cisco Information Packet shipped with your product.
For service and support for a product purchased directly from Cisco, use CCO.
If you have a CCO login account you can access the following URL, which contains links and tips on configuring your Cisco products:
http://www.cisco.com/kobayashi/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your Web browser to CCO and click on this path:
Products & Technologies: Products: Technical Tips
The following sections are provided from the Technical Tips page:
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You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
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Posted: Thu Sep 19 18:40:47 PDT 2002
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