Cisco Systems OL-4387-02 manual 10-5, Example 10-1 Binding a Server Group to a Port

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Chapter 10 SSG TCP Redirect

The following sections describe these tasks in more detail:

Configuration Considerations for SSG TCP Redirect, page 10-5

Configuring Port-Based Redirection for Unauthenticated Users, page 10-5

Limiting Redirection for Unauthenticated Users, page 10-5

Configuring SSG TCP Redirect, page 10-6

Configuration Considerations for SSG TCP Redirect

When you configure SSG TCP Redirect, consider the following:

Where to redirect—Determine the server group to which you want to redirect.

When to redirect—Determine if you want to redirect for unauthenticated, unauthorized, or initial packets.

What to redirect—Determine if you want to redirect by networks or ports, and then decide the networks to include in a network list and the ports to include in a port list.

Configuring Port-Based Redirection for Unauthenticated Users

To apply SSG TCP Redirect to unauthenticated users based on a TCP port, bind the unauthenticated user redirect server group to a port using the redirect port command in SSG redirect configuration mode.

Example 10-1binds the server group named userRedirect1 to port 80 for unauthenticated user redirection.

Example 10-1 Binding a Server Group to a Port

Router(config)# ssg tcp-redirect

Router(config-ssg-redirect)# server-group userRedirect1

Router(config-ssg-redirect-group)# server 10.0.1.4 8090

Router(config-ssg-redirect)#redirect unauthenticated-user to userRedirect1

Router(config-ssg-redirect)#redirect port 80 to userRedirect1

Limiting Redirection for Unauthenticated Users

To limit the number of TCP sessions from an unauthenticated user that are redirected to a particular server group, use the max-sessionscommand in the SSG redirect group configuration mode:

server-group group-name

max-sessions host number

Example 10-2limits the number of TCP sessions from user4. In this example, SSG redirects a maximum of 15 sessions from user4 to the server group named new-users1.

Example 10-2 Limiting Redirected TCP Sessions

Router(config)# ssg tcp-redirect

Router(config-ssg-redirect)# server-groupnew-users1

Router(config-ssg-redirect-group)# server 10.0.1.4 8090

Router(config-ssg-redirect-group)# max-sessions user4 15

Cisco 10000 Series Router Service Selection Gateway Configuration Guide

 

OL-4387-02

10-5

 

 

 

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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 Audience About This GuideDocument Organization Document Conventions Obtaining Documentation Related 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 Single Host Logon SSG Logon and LogoffPrerequisites for Single Host Logon SSG Autologoff Configuration of 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 PPP Terminated Aggregation Service Selection MethodsPTA-Multidomain Restrictions for PTA-MD Web Service SelectionSesm and SSG Performance OL-4387-02 SSG AutoDomain Service ConnectionConfiguration Example for SSG AutoDomain Configuration of SSG AutoDomainRestrictions for SSG AutoDomain Example 6-2 AutoDomain Exclude Profile SSG VSA Format Example 6-1 SSG AutoDomainExample 6-3 AutoDomain Exclude File Format SSG Prepaid Configuration of 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 Overview SSG Hierarchical PolicingSSG 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 SSG TCP Redirect Redirection for Unauthenticated Users10-1 10-2 Redirection for Unauthorized Services10-3 Initial Captivation10-4 Configuration of SSG TCP RedirectRestrictions for SSG TCP Redirect Prerequisites for SSG TCP RedirectExample 10-1 Binding a Server Group to a Port 10-5Example 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 10-8VPI/VCI Static Binding to a Service Profile Miscellaneous SSG Features11-1 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 UnconfigService Translation SSG Enhancements for Overlapping Services11-7 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