- RADIUS Attributes Overview and RADIUS IETF Attributes
- RADIUS Vendor-Proprietary Attributes
- RADIUS Vendor-Specific Attributes and RADIUS Disconnect-Cause Attribute Values
- Connect-Info RADIUS Attribute 77
- Encrypted Vendor-Specific Attributes
- RADIUS Attribute 8 Framed-IP-Address in Access Requests
- RADIUS Attribute 82 Tunnel Assignment ID
- RADIUS Tunnel Attribute Extensions
- RADIUS Attribute 66 Tunnel-Client-Endpoint Enhancements
- RADIUS Attribute Value Screening
- Finding Feature Information
- Restrictions for Radius Attribute 82 Tunnel Assignment ID
- Information about RADIUS Attribute 82 Tunnel Assignment ID
- How to Configure RADIUS Attribute 82 Tunnel Assignment ID
- Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
- Additional References
- Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
RADIUS Attribute 82 Tunnel Assignment ID
- Finding Feature Information
- Restrictions for Radius Attribute 82 Tunnel Assignment ID
- Information about RADIUS Attribute 82 Tunnel Assignment ID
- How to Configure RADIUS Attribute 82 Tunnel Assignment ID
- Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
- Additional References
- Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Restrictions for Radius Attribute 82 Tunnel Assignment ID
This feature is designed only for VPDN dial-in applications. It does not support VPDN dial-out.
Information about RADIUS Attribute 82 Tunnel Assignment ID
The RADIUS Attribute 82: Tunnel Assignment ID feature allows the Layer 2 Transport Protocol access concentrator (LAC) to group users from different per-user or domain RADIUS profiles into the same active tunnel. The RADIUS Attribute 82: Tunnel Assignment ID feature defines a new avpair, Tunnel-Assignment-ID, which allows the LAC to group users from different RADIUS profiles into the same tunnel if the chosen endpoint, tunnel type, and Tunnel-Assignment-ID are identical. This feature introduces new software functionality. No new commands are introduced with this feature.
Benefits
The RADIUS Attribute 82: Tunnel Assignment ID feature improves LAC and L2TP network server (LNS) performance by reducing memory usage, because fewer tunnel data structures must be maintained. This feature allows the LAC and LNS to handle a higher volume of users without negatively impacting router performance.
How to Configure RADIUS Attribute 82 Tunnel Assignment ID
There are not any specific configuration tasks associated with support of this feature.
Verifying RADIUS Attribute 82
To verify that RADIUS attribute 82 is being used by the LAC during tunnel authorization, use the following privileged EXEC command:
| Command |
Purpose |
|---|---|
Router# debug radius |
Displays information associated with RADIUS. The output of this command shows whether attribute 82 is being sent in access requests. |
Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
LAC Configuration Example
The following example shows a sample LAC configuration when the VPDN group is defined on the router:
aaa new-model aaa authentication ppp default local aaa authorization network default local ! bba-group pppoe bba_group1 virtual-template 1 ! interface Loopback1 no ip address vpdn-group VPDN_LAC1 request-dialin protocol l2tp local name tb162_LAC1 domain isp1.com initiate-to ip 10.0.0.2 source-ip 10.0.0.1 l2tp tunnel receive-window 100 l2tp tunnel nosession-timeout 30 l2tp tunnel retransmit retries 5 l2tp tunnel retransmit timeout min 2 l2tp tunnel retransmit timeout max 8 l2tp tunnel hello 60 l2tp tunnel password tunnel1 ! ! interface virtual-template 1 no snmp trap link-status no keepalive ip unnumbered loopback1 ppp mtu adaptive ppp authentication pap no logging event link-status !
The following example shows a sample LAC configuration when the VPDN group is defined in RADIUS:
aaa authentication ppp default group radius aaa authorization network default radius ! bba-group pppoe bba_group1 virtual-template 1 ! interface Loopback1 no ip address interface virtual-template 1 no snmp trap link-status no keepalive ip unnumbered loopback1 ppp mtu adaptive ppp authentication pap no logging event link-status
LNS Configuration Example
The following example configures VPDN on the LNS:
hostname lns aaa new-model aaa authentication ppp default group radius aaa authorization network default group radius vpdn enable vpdn-group VPDN_LNS1 accept-dialin protocol l2tp virtual-template 1 terminate-from hostname tb162_LAC1 local name LNS1 l2tp tunnel hello 90 l2tp tunnel password 0 hello1 interface Loopback0 ip address 10.1.1.3 255.255.255.0 interface Virtual-Template1 ip unnumbered Loopback0 no keepalive peer default ip address pool mypool ppp authentication chap ip local pool mypool 10.1.1.10 10.1.1.50 radius-server host lns-radiusd auth-port 1645 acct-port 1646 radius-server retransmit 3 radius-server key cisco
RADIUS Configuration Example
The following examples configure the RADIUS server to group sessions in a tunnel:
Per-User Configuration
user@router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
client@router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
Domain Configuration
eng.router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
sales.router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
Additional References
The following sections provide references related to the Configuring RADIUS Attribute 82: Tunnel Assignment ID.
Related Documents
| Related Topic |
Document Title |
|---|---|
| Virtual template interfaces and dial features |
Cisco IOS XE Dial Technologies Configuration Guide , Release 2 |
| Virtual private dialup networks (VPDNs) |
Cisco IOS XE VPDN Configuration Guide , Release 2 |
| RADIUS |
"Configuring RADIUS" in the Cisco IOS XE Security Configuration Guide: Configuring User Services , Release 2. |
| Security commands |
Cisco IOS Security Command Reference |
Standards
| Standard |
Title |
|---|---|
| No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature. |
-- |
MIBs
| MIB |
MIBs Link |
|---|---|
| No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature. |
To locate and download MIBs for selected platforms, Cisco IOS XE software releases, and feature sets, use Cisco MIB Locator found at the following URL: |
RFCs
| RFC |
Title |
|---|---|
| No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature. |
-- |
Technical Assistance
| Description |
Link |
|---|---|
| The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
| Table 1 | Feature Information for RADIUS Attribute 82: Tunnel Assignment ID |
| Feature Name |
Releases |
Feature Information |
|---|---|---|
| RADIUS Attribute 82: Tunnel Assignment Id |
Cisco IOS XE Release 2.1 |
The RADIUS Attribute 82: Tunnel Assignment ID feature allows the Layer 2 Transport Protocol access concentrator (LAC) to group users from different per-user or domain RADIUS profiles into the same active tunnel. In Cisco IOS XE Release 2.1, support was added for the Cisco ASR 1000 Series Aggregation Services Routers. |
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.
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