Cisco Systems OL-4387-02 manual SSG Prepaid Idle Timeout, Configuration Example for SSG Autologoff

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Chapter 3 SSG Logon and Logoff

SSG Prepaid Idle Timeout

Configuration Example for SSG Autologoff

Example 3-1shows how to enable autologoff with ARP ping.

Example 3-1 SSG Autologoff Using ARP Ping

ssg auto-logoff arp interval 60

Example 3-2shows how to enable autologoff with ICMP ping.

Example 3-2 SSG Autologoff Using ICMP Ping

ssg auto-logoff icmp interval 60 packet 2 timeout 500

SSG Prepaid Idle Timeout

The SSG Prepaid Idle Timeout feature enhances the SSG and the SSG Prepaid feature by doing the following:

•Enables SSG to return residual quotas (allotments of prepaid credit) to the billing server from services that a user is logged into but not actively using. The quota that is returned to the billing center can be applied to the quota for the services the user is actively using.

•Enables a user’s connection to services to be open even when the billing server returns a zero quota. The connection’s status depends on the combination of the quota and the idle timeout value returned. Depending on the connection service, SSG requests the quota for a connection from the billing server at the following times:

–After the user starts using a particular service

–When the user runs out of quota

–After the configured idle timeout value expires

•Enables SSG to reauthorize a user before the user completely consumes the allocated quota. You can also configure SSG to not pass traffic during reauthorization, thus preventing revenue leaks in the event the billing server returns a zero quota for the user.

•Enhances the handling of a returned zero quota from the billing server. If the billing server returns a zero quota and a nonzero idle timeout, the user has run out of credit for a service. When a user runs out of credit, the user is redirected to the billing server to replenish the quota. When the user is redirected to the billing server, the user’s connection to the original service or services remains up, but any traffic passing through the connection is dropped. This enables the user to replenish the quota on the billing server without losing connections to services or having to perform additional service logons.

•Enables SSG to notify the billing server when a connection fails. This enables the billing server to free quota that was reserved for the failed connection and to apply the quota immediately to some other active connection.

Without the SSG Prepaid Idle Timeout feature, traffic passed during reauthorization represents a revenue leak if the billing server returns a zero quota for the user. A configurable threshold value is used to prevent this. This value causes SSG to reauthorize a user’s connection before the user completely consumes the allocated quota for a service.

Cisco 10000 Series Router Service Selection Gateway Configuration Guide

 

OL-4387-02

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Contents Corporate Headquarters Copyright 2004, Cisco Systems, Inc All rights reserved Iii N T E N T SConfiguration Example for SSG AutoDomain Configuration Example for SSG Open Garden Configuration of VPI/VCI Static Binding to a Service Profile Vii SSG UnconfigViii About This Guide AudienceDocument Organization Document Conventions Related Documentation Obtaining DocumentationCisco.com Ordering Documentation Documentation FeedbackObtaining Technical Assistance Documentation CD-ROMXiii Cisco TAC WebsiteOpening a TAC Case TAC Case Priority DefinitionsXiv Obtaining Additional Publications and InformationService Selection Gateway Service Selection Gateway OverviewSSG Topology Example Access Protocols Default NetworkSSG Restrictions Supported SSG FeaturesService Selection Gateway Overview SSG Restrictions SSG Architecture Model SSG PrerequisitesService Selection Gateway Overview SSG Architecture Model OL-4387-02 Limitations and Restrictions Scalability and PerformanceScalability and Performance Limitations and Restrictions SSG Logon and Logoff Single Host LogonPrerequisites for Single Host Logon Configuration of SSG Autologoff SSG AutologoffRestrictions for SSG Autologoff Example 3-2 SSG Autologoff Using Icmp Ping SSG Prepaid Idle TimeoutConfiguration Example for SSG Autologoff Example 3-1 SSG Autologoff Using ARP PingService Reauthorization Service AuthorizationConfiguration Example for SSG Prepaid Idle Timeout Restrictions for SSG Prepaid Idle TimeoutPrerequisites for SSG Prepaid Idle Timeout Configuration of SSG Prepaid Idle TimeoutExample 3-6 SSG Threshold Time SSG Session and Idle TimeoutExample 3-5 SSG Service-Specific TCP Redirect Example 3-7 SSG Threshold VolumeExample 4-1 Radius Freeware Format Example Authentication and AccountingSSG Full Username Radius Attribute Restrictions for SSG Full Username Radius AttributeExample 4-4 Radius Accounting-Stop Record Account Login and LogoutRadius Accounting Records Example 4-3 Radius Accounting-Start RecordService Connection and Termination Authentication and Accounting Radius Accounting Records Service Selection Methods PPP Terminated AggregationPTA-Multidomain Restrictions for PTA-MD Web Service SelectionSesm and SSG Performance OL-4387-02 SSG AutoDomain Service ConnectionConfiguration of SSG AutoDomain Configuration Example for SSG AutoDomainRestrictions for SSG AutoDomain Example 6-1 SSG AutoDomain Example 6-2 AutoDomain Exclude Profile SSG VSA FormatExample 6-3 AutoDomain Exclude File Format Configuration of SSG Prepaid SSG PrepaidRestrictions for SSG Prepaid SSG Open Garden Configuration Example for SSG PrepaidRestrictions for SSG Open Garden Configuration of SSG Open GardenConfiguration Example for SSG Open Garden SSG Port-Bundle Host KeyRestrictions for SSG Port-Bundle Host Key Prerequisites for SSG Port-Bundle Host Key Mutually Exclusive Service SelectionConfiguration of SSG Port-Bundle Host Key Exclude NetworksConfiguration of Mutually Exclusive Service Selection OL-4387-02 Downstream Access Control List Service ProfilesFull Username Upstream Access Control ListService Authentication Type Domain NameService Next-Hop Gateway Service-Defined CookieService Description Service ModeExample 7-1 Service Profile Cached Service ProfilesType of Service Service Profile ExampleConfiguration of Cached Service Profiles OL-4387-02 SSG Hierarchical Policing SSG Hierarchical Policing OverviewSSG Hierarchical Policing Token Bucket Scheme Restrictions for SSG Hierarchical Policing SSG Hierarchical Policing ConfigurationExample 8-2 Enabling Per-Session Policing on a Router Configuration Examples for SSG Hierarchical PolicingOL-4387-02 Transparent Passthrough Interface ConfigurationFor example Access Side InterfacesRestrictions of Transparent Passthrough Configuration of Transparent PassthroughMulticast Protocols on SSG Interfaces Network Side InterfacesConfiguration of Multicast Protocols on SSG Interfaces Redirection for Unauthenticated Users SSG TCP Redirect10-1 10-2 Redirection for Unauthorized Services10-3 Initial Captivation10-4 Configuration of SSG TCP RedirectRestrictions for SSG TCP Redirect Prerequisites for SSG TCP Redirect10-5 Example 10-1 Binding a Server Group to a PortExample 10-2 Limiting Redirected TCP Sessions 10-6 Configuring SSG TCP RedirectExample 10-4 Defining Network Lists Configuration Examples for SSG TCP Redirect10-7 Example 10-3 Defining a Captive Portal Server GroupExample 10-5 Defining Port Lists 10-8Miscellaneous SSG Features VPI/VCI Static Binding to a Service Profile11-1 11-2 AAA Server Group Support for Proxy ServicesConfiguration of Radius Virtual Circuit Logging Radius Virtual Circuit Logging11-3 Packet Filtering11-4 Downstream Access Control List-outaclUpstream Access Control List-inacl Restrictions for Packet FilteringRestrictions for SSG Unconfig SSG UnconfigConfiguration of Packet Filtering Configuration Example for Packet Filtering11-6 Prerequisites for SSG UnconfigConfiguration of SSG Unconfig Configuration Examples for SSG UnconfigSSG Enhancements for Overlapping Services Service Translation11-7 11-8 11-9 Restrictions for Service Translation11-10 Configuration of Service Translation11-11 Expansion of Service IDs11-12 Network Sets12-1 Monitoring and Maintaining SSG12-2 Troubleshooting RadiusPer-Service Statistics Restrictions for Per-Service Statistics12-3 Monitoring the Parallel Express Forwarding Engine12-4 Figure A-1 SSG Example Topology SSG Configuration ExampleUsername cisco password 0 cisco clock timezone PST Example A-1 Cisco 10000 Router SSG ConfigurationSsg accounting interval 300 ssg profile-cache Full-duplex Peer default ip address pool SSG-POOL Exec-timeout 0 0 password lab SSG Implementation Notes SSG Feature Implementation NotesMpls Also see the Restrictions for SSG TCP Redirect section on OL-4387-02 GL-1 O S S a R YGL-2 GL-3 GL-4 GL-5 GL-6 IN-1 D EIN-2 DSL G-1IN-3 ISP G-2 L2TPIN-4 RadiusIN-5 Reauthorizing prepaidIN-6 TCPIN-7 VRF G-5 VSAIN-8
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