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Configuring the Cisco uBR900 Series Cable Access Routers
Feature Overview
Cisco IOS Software Feature Sets
Base IP Bridging
Home Office (Easy IP)
Small Office
Tel e c o m mu t e r
Data Operations
Operating Modes
Data Specifications
Service Assignments
Downstream and Upstream Data Transfer
Bridging Applications
Routing Applications
Layer 2 Tunneling Protocol
Easy IP Dynamic Host Configuration Protocol (DHCP) Server
Network Address Translation and Port Address Translation (NAT/PAT)
Voice Over IP Operations
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H.323 Protocol Stack
SGCP Protocol Stack
Voice Specifications
Backup POTS Connection
Security Features
DOCSIS Baseline Privacy
IPSec Network Security
Triple Data Encryption Standard
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Configuration Options
Initial Power-On Sequence
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Basic Troubleshooting
Feature Overview
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Basic Troubleshooting
Configuring the Cisco uBR900 Series Cable Access Routers 25
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Event 3Obtain Upstream Parameters
Event 4Start Ranging for Power Adjustments
Event 5Establish IP Connectivity
Event 6Establish the Time of Day
Event 7Establish Security
Event 8Transfer Operational Parameters
Event 9Perform Registration
Event 10Comply with Baseline Privacy
Event 11Enter the Maintenance State
Benefits
Restrictions
Related Features and Technologies
Related Documents
Supported Platforms
Prerequisites
Supported MIBs and RFCs
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Configuration Tasks
Configuring a Host Name and Password
Verifying the Host Name and Password
Configuration, Verification, and Troubleshooting Tips
Configuring Ethernet and Cable Access Router Interfaces
Verifying IP Address Configuration
Configuration, Verification, and Troubleshooting Tips
Configuring Routing
Configuring Routing
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Verifying Routing
Configuring Bridging
Configuring Bridging
Step Command Purpose
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Verifying Bridging
terminals you want to configure.
Reestablishing DOCSIS-Compliant Bridging
Verifying DOCSIS-Compliant Bridging
Customizing the Cable Access Router Interface
Using Multiple PCs with the Cable Access Router
Configuration Examples
Basic Internet Access Bridging Configuration
Basic Internet Access Routing Configuration
Configuring the Cisco uBR900 Series Cable Access Routers 47
Basic Internet Access Routing Configuration
Note To configure the Cisco uBR900 series to act as a router, the no cable-modem compliant
Multicast-Enabled Routing Configuration
VoIP Bridging Configuration Using H.323v2
Configuring the Cisco uBR900 Series Cable Access Routers 49
VoIP Bridging Configuration Using H.323v2
VoIP Routing Configuration Using H.323v2
NAT/PAT Configuration
Configuring the Cisco uBR900 Series Cable Access Routers 51
NAT/PAT Configuration
VoIP Bridging Configuration Using SGCP
To configure this application via DHCP, the following fields must also be set:
IPSec Configuration
IPSec Configuration
Note Encryption/decryption is subject to export licensing controls. To support IPSec, the
Note Careful address assignment on user equipment and policy routing at the headend is required.
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L2TP Configuration
Note Encryption/decryption is subject to export licensing controls. To support L2TP and Firewall,
Note Careful address assignment on user equipment and policy routing at the headend is required.
L2TP Configuration
Configuring the Cisco uBR900 Series Cable Access Routers 55
Command Reference
cable-modem compliant bridge
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cable-modem downstream saved channel
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cable-modem fast-search
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cable-modem upstream preamble qpsk
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cable-modem voip best-effort
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interface cable-modem
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show bridge cable-modem
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show controllers cable-modem
show controllers cable-modem
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Following is sample output for the show controllers cable-modem 0 command:
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show controllers cable-modem bpkm
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show controllers cable-modem des
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show controllers cable-modem des
No default behavior or values.
Privileged EXEC
DES engine registers are displayed in the following example:
number Controller number inside the Cisco uBR900 series.
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show controllers cable-modem filters
MAC and SID filter information is displayed in the following example:
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show controllers cable-modem lookup-table
show controllers cable-modem lookup-table
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The mini-slot lookup table is displayed in the following example:
show controllers cable-modem lookup-table
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show controllers cable-modem mac
Example 1
If the DHCP server cannot not be reached, the error will look like this in the MAC log:
The fields in this display are explained in the section Basic Troubleshooting on page23.
Example 2
MAC error log information is displayed in the following example, which is also reported via SNMP:
Example 3
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Example 4
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Example 5
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Table12 describes the fields shown in the display.
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show controllers cable-modem phy
show controllers cable-modem phy
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Physical transmit registers are displayed in the following example:
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show controllers cable-modem tuner
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show dhcp
Following is sample output for the show dhcp server command:
Table15 describes the significant fields shown in the display.
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show interfaces cable-modem
Traffic passing through the cable access router interface is shown in the following example:
Table16 describes the significant fields shown in the display.
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Table17 describes the fields shown in this display.
Table18 describes the counters shown in this display.
MIB counters on the cable interface are displayed in the next example:
Table19 describes the software MAC address filter information for the cable access router interface.
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Debug Commands
debug cable-modem bpkm
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debug cable-modem bridge
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debug cable-modem error
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debug cable-modem interrupts
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debug cable-modem mac
Example 1
Example 2
Example 3
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debug cable-modem map
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Glossary
