Cisco Systems OL-4387-02 manual Also see the Restrictions for SSG TCP Redirect section on

Page 95

Appendix B SSG Implementation Notes

Table B-1 SSG Implementation Notes for the Cisco 10000 Router (continued)

SSG Feature

Implementation Notes

RADIUS Proxy

Not Supported.

 

 

Service Profiles

MTU Size Attribute—In Directory Enabled Service Selection Subscription (DESS)

 

mode, SESM does not support the use of the MTU Size attribute.

 

Service-Defined Cookie Attribute—SSG does not parse or interpret the value of this

 

attribute. You must configure the proxy RADIUS server to interpret this attribute.

 

A RADIUS service profile supports only one Service-Defined Cookie.

 

 

SMTP Redirect

Not supported, even if it is configured.

 

 

TCP Redirect

Supported to default network only. User traffic to services might be dropped,

 

even if it does not match a redirect port.

 

Network-specific redirects do not work unless the network is part of an exclude

 

network or part of an active service. As a workaround, use redirects based on

 

service name.

 

The authentication feature applies only to non-PPP users. PPP users are always

 

authenticated as part of the PPP negotiation process. PPP users logging off from

 

SESM are also redirected.

 

Initial Captivation—If the packet matches the redirection filter, the packet is

 

subject to initial captivation and is redirected. If the packet does not match the

 

redirection filter, the packet is not subject to initial captivation and is dropped.

 

Also see the “Restrictions for SSG TCP Redirect” section on page 10-4.

 

 

Transparent

Supported only for traffic to the user (host). Not supported for traffic from the

Passthrough

user (host). Use Open Garden to allow SSG hosts access to certain networks.

 

Unauthorized downstream traffic is always allowed, but unauthorized upstream

 

traffic from an SSG host is dropped.

 

 

Unsupported

If an unsupported feature (such as NAT) is applied to an SSG connection, the

Features

router does not reject the connection; however, the feature is not applied to traffic

 

over the connection.

 

 

VPI/VCI Static

The feature applies only to PPP sessions.

Binding to a

You must statically configure the feature.

Service Profile

SESM cannot map the VC to the service.

 

 

 

Cisco 10000 Series Router Service Selection Gateway Configuration Guide

 

OL-4387-02

B-3

 

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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 Document Organization About This GuideAudience Document Conventions Cisco.com Related DocumentationObtaining Documentation 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 Prerequisites for Single Host Logon SSG Logon and LogoffSingle Host Logon Restrictions for SSG Autologoff Configuration of SSG AutologoffSSG 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 PTA-Multidomain Service Selection MethodsPPP Terminated Aggregation Restrictions for PTA-MD Web Service SelectionSesm and SSG Performance OL-4387-02 SSG AutoDomain Service ConnectionRestrictions for SSG AutoDomain Configuration of SSG AutoDomainConfiguration Example for SSG AutoDomain Example 6-3 AutoDomain Exclude File Format Example 6-1 SSG AutoDomainExample 6-2 AutoDomain Exclude Profile SSG VSA Format Restrictions for SSG Prepaid Configuration of SSG PrepaidSSG 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 Token Bucket Scheme SSG Hierarchical PolicingSSG Hierarchical Policing Overview 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 10-1 Redirection for Unauthenticated UsersSSG TCP Redirect 10-2 Redirection for Unauthorized Services10-3 Initial Captivation10-4 Configuration of SSG TCP RedirectRestrictions for SSG TCP Redirect Prerequisites for SSG TCP RedirectExample 10-2 Limiting Redirected TCP Sessions 10-5Example 10-1 Binding a Server Group to a Port 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 10-811-1 Miscellaneous SSG FeaturesVPI/VCI Static Binding to a Service Profile 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 Unconfig11-7 SSG Enhancements for Overlapping ServicesService Translation 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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