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Cisco 10000 Series Router Service Selection Gateway Configuration Guide
OL-4387-02
Chapter 3 SSG Logon and Logoff
SSG Prepaid Idle Timeout
Restrictions for SSG Prepaid Idle Timeout
The SSG Prepaid Idle Timeout feature has the following restrictions:
• The Cisco 10000 router supports only time-based SSG Prepaid for a service connection. Quotas are
measured in seconds. You cannot change the unit of measure.
• The Cisco 10000 router does not support returning a quota when the connection is idle.
• After a user runs out of quota and then replenishes the quota at the billing server, SSG receives the
updated quota and resumes the connection only after the next reauthorization.
Prerequisites for SSG Prepaid Idle Timeout
The SSG Prepaid Idle Timeout feature requires the following:
• You must enable SSG accounting before you can use the SSG Prepaid feature. SSG accounting is
enabled by default. If it has been disabled, reenable it by using the ssg accounting command in
global configuration mode.
• The SSG Prepaid feature requires the AAA server to support prepaid billing.
• You must configure the SSG to send Attribute 55 in accounting requests.
Configuration of SSG Prepaid Idle Timeout
To configure the SSG Prepaid Idle Timeout feature, configure the SSG Prepaid and SSG TCP Redirect
features. For more information, refer to the SSG Prepaid, Release 12.2(4)B feature module and the
SSG TCP Redirect for Services, Release 12.2(4)B feature module.
Configuration Example for SSG Prepaid Idle Timeout
Example 3-3 shows how to configure the SSG Prepaid feature to provide the prepaid billing server with
session ID and time-stamp information.
Example 3-3 SSG Prepaid Service
radius-server attribute 44 include-in-access-req
radius-server attribute 55 include-in-acct-req
Example 3-4 shows how to configure the SSG TCP Redirect feature. The commands configure a captive
portal group called "DefaultRedirectGroup," add two servers to "DefaultRedirectGroup," and redirect
prepaid users to the newly created captive portal.
Example 3-4 SSG TCP Redirect
ssg enable
ssg tcp-redirect
server-group DefaultRedirectGroup
server 10.0.0.1 8080
server 10.0.0.20 80
end
redirect prepaid-user to DefaultRedirectGroup
- Text Part Number: OL-4387-02 1
- CONTENTS 3
- 6 Service Connection 6-1 4
- Contents 5
- 9 Interface Configuration 9-1 6
- 10 SSG TCP Redirect 10-1 6
- Document Conventions 10
- Related Documentation 11
- Obtaining Documentation 11
- Documentation Feedback 12
- TAC Case Priority Definitions 13
- Cisco TAC Website 13
- Opening a TAC Case 13
- About This Guide 14
- Service Selection Gateway 15
- Default Network 17
- Access Protocols 17
- Supported SSG Features 18
- SSG Restrictions 18
- SSG Prerequisites 20
- SSG Architecture Model 20
- Scalability and Performance 23
- Limitations and Restrictions 24
- SSG Logon and Logoff 25
- SSG Autologoff 26
- SSG Prepaid Idle Timeout 27
- Service Authorization 28
- Service Reauthorization 28
- Example 3-4 SSG TCP Redirect 29
- SSG Session and Idle Timeout 30
- Authentication and Accounting 31
- RADIUS Accounting Records 32
- Service Selection Methods 35
- Web Service Selection 36
- SESM and SSG Performance 37
- Service Connection 39
- SSG AutoDomain 40
- Example 6-1 SSG AutoDomain 41
- SSG Prepaid 42
- SSG Open Garden 43
- SSG Port-Bundle Host Key 44
- Exclude Networks 46
- Service Profiles 49
- Cached Service Profiles 52
- SSG Hierarchical Policing 55
- Interface Configuration 59
- Access Side Interfaces 60
- Network Side Interfaces 61
- SSG TCP Redirect 63
- Initial Captivation 65
- Configuring SSG TCP Redirect 68
- Miscellaneous SSG Features 71
- Packet Filtering 73
- SSG Unconfig 75
- Configuration of SSG Unconfig 76
- Service Translation 77
- Service Definitions 80
- Internal Network Sets 80
- Services-to-Sets Conversion 80
- Expansion of Service IDs 81
- Network Sets: 82
- Troubleshooting RADIUS 84
- Per-Service Statistics 84
- SSG Configuration Example 87
- SSG Implementation Notes 93
- GLOSSARY 97
- Glossary 100
- OL-4387-02 100
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