11-8 | Cisco Systems OL-4387-02 specs

Chapter 11 Miscellaneous SSG Features

SSG Enhancements for Overlapping Services

Because network sets for services must be unique, the following network sets are defined internally:

Set1

0.0.0.0/0.0.0.0

Set2

10.58.253.0/255.255.255.0

Set3

10.58.254.0/255.255.255.0

Set4

10.58.102.6/255.255.255.255

The service translation mechanism then internally converts the services to the following sets:

Service Default_256

Set1

Service Bronze_256

Set2 and set3

Service Silver_512

Set2, set3, and set4

Service Gold_2048

Set2, set3, and set4

Service Platinum_1024

Set2

Policing of user traffic is based on the service to which the user is assigned. For example, using the services and sets defined above, if user A is subscribed to Default_256 at 256 Kbps, user A traffic is policed at 256 Kbps for all services. If user B is subscribed to Default_256 at 256 Kbps and Platinum_1024 at 1024 Kbps, user B traffic to the service 10.58.253.0/255.255.255.0 is policed at 1024 Kbps, but all other user B traffic is policed at 256 Kbps.

In the previous example, each set contains a single prefix. However, network sets can also contain multiple prefixes. For example, consider the following service definitions:

ssg bind service Bronze_256 <next hop ssg> 10.58.253.0/255.255.255.0 10.58.254.0/255.255.255.0

ssg bind service Default_256 <next hop ssg> 10.58.253.0/255.255.255.0 10.58.254.0/255.255.255.0 10.58.102.6/255.255.255.255 10.58.102.7/255.255.255.255

Based on the service definitions, the service translation mechanism internally defines the following network sets:

Set1

10.58.253.0/255.255.255.0

10.58.254.0/255.255.255.0

Set2

10.58.102.6/255.255.255.255

10.58.102.7/255.255.255.255

Cisco 10000 Series Router Service Selection Gateway Configuration Guide

11-8	OL-4387-02

Image 78

Cisco Systems OL-4387-02 manual 11-8

Contents

Corporate Headquarters Copyright 2004, Cisco Systems, Inc All rights reserved N T E N T S Iii Configuration Example for SSG AutoDomain Configuration Example for SSG Open Garden Configuration of VPI/VCI Static Binding to a Service Profile SSG Unconfig Vii Viii About This Guide AudienceDocument Organization Document Conventions Related Documentation Obtaining DocumentationCisco.com Documentation CD-ROM Documentation FeedbackObtaining Technical Assistance Ordering Documentation TAC Case Priority Definitions Cisco TAC WebsiteOpening a TAC Case Xiii Obtaining Additional Publications and Information Xiv Service Selection Gateway Overview Service Selection Gateway SSG Topology Example Default Network Access Protocols Supported SSG Features SSG Restrictions Service Selection Gateway Overview SSG Restrictions SSG Prerequisites SSG Architecture Model Service Selection Gateway Overview SSG Architecture Model OL-4387-02 Scalability and Performance Limitations and Restrictions Scalability 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 3-1 SSG Autologoff Using ARP Ping SSG Prepaid Idle TimeoutConfiguration Example for SSG Autologoff Example 3-2 SSG Autologoff Using Icmp Ping Service Authorization Service Reauthorization Configuration of SSG Prepaid Idle Timeout Restrictions for SSG Prepaid Idle TimeoutPrerequisites for SSG Prepaid Idle Timeout Configuration Example for SSG Prepaid Idle Timeout Example 3-7 SSG Threshold Volume SSG Session and Idle TimeoutExample 3-5 SSG Service-Specific TCP Redirect Example 3-6 SSG Threshold Time Restrictions for SSG Full Username Radius Attribute Authentication and AccountingSSG Full Username Radius Attribute Example 4-1 Radius Freeware Format Example Example 4-3 Radius Accounting-Start Record Account Login and LogoutRadius Accounting Records Example 4-4 Radius Accounting-Stop Record Service Connection and Termination Authentication and Accounting Radius Accounting Records Service Selection Methods PPP Terminated AggregationPTA-Multidomain Web Service Selection Restrictions for PTA-MD Sesm and SSG Performance OL-4387-02 Service Connection SSG AutoDomain Configuration 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 Configuration Example for SSG Prepaid SSG Open Garden SSG Port-Bundle Host Key Configuration of SSG Open GardenConfiguration Example for SSG Open Garden Restrictions for SSG Open Garden Restrictions for SSG Port-Bundle Host Key Exclude Networks Mutually Exclusive Service SelectionConfiguration of SSG Port-Bundle Host Key Prerequisites for SSG Port-Bundle Host Key Configuration of Mutually Exclusive Service Selection OL-4387-02 Service Profiles Downstream Access Control List Domain Name Upstream Access Control ListService Authentication Type Full Username Service Mode Service-Defined CookieService Description Service Next-Hop Gateway Service Profile Example Cached Service ProfilesType of Service Example 7-1 Service Profile Configuration of Cached Service Profiles OL-4387-02 SSG Hierarchical Policing SSG Hierarchical Policing OverviewSSG Hierarchical Policing Token Bucket Scheme SSG Hierarchical Policing Configuration Restrictions for SSG Hierarchical Policing Configuration Examples for SSG Hierarchical Policing Example 8-2 Enabling Per-Session Policing on a Router OL-4387-02 Interface Configuration Transparent Passthrough Access Side Interfaces For example Network Side Interfaces Configuration of Transparent PassthroughMulticast Protocols on SSG Interfaces Restrictions of Transparent Passthrough Configuration of Multicast Protocols on SSG Interfaces Redirection for Unauthenticated Users SSG TCP Redirect10-1 Redirection for Unauthorized Services 10-2 Initial Captivation 10-3 Prerequisites for SSG TCP Redirect Configuration of SSG TCP RedirectRestrictions for SSG TCP Redirect 10-4 10-5 Example 10-1 Binding a Server Group to a PortExample 10-2 Limiting Redirected TCP Sessions Configuring SSG TCP Redirect 10-6 Example 10-3 Defining a Captive Portal Server Group Configuration Examples for SSG TCP Redirect10-7 Example 10-4 Defining Network Lists 10-8 Example 10-5 Defining Port Lists Miscellaneous SSG Features VPI/VCI Static Binding to a Service Profile11-1 Radius Virtual Circuit Logging AAA Server Group Support for Proxy ServicesConfiguration of Radius Virtual Circuit Logging 11-2 Packet Filtering 11-3 Restrictions for Packet Filtering Downstream Access Control List-outaclUpstream Access Control List-inacl 11-4 Configuration Example for Packet Filtering SSG UnconfigConfiguration of Packet Filtering Restrictions for SSG Unconfig Configuration Examples for SSG Unconfig Prerequisites for SSG UnconfigConfiguration of SSG Unconfig 11-6 SSG Enhancements for Overlapping Services Service Translation11-7 11-8 Restrictions for Service Translation 11-9 Configuration of Service Translation 11-10 Expansion of Service IDs 11-11 Network Sets 11-12 Monitoring and Maintaining SSG 12-1 Restrictions for Per-Service Statistics Troubleshooting RadiusPer-Service Statistics 12-2 Monitoring the Parallel Express Forwarding Engine 12-3 12-4 SSG Configuration Example Figure A-1 SSG Example Topology Example A-1 Cisco 10000 Router SSG Configuration Username cisco password 0 cisco clock timezone PST Ssg accounting interval 300 ssg profile-cache Full-duplex Peer default ip address pool SSG-POOL Exec-timeout 0 0 password lab SSG Feature Implementation Notes SSG Implementation Notes Mpls Also see the Restrictions for SSG TCP Redirect section on OL-4387-02 O S S a R Y GL-1 GL-2 GL-3 GL-4 GL-5 GL-6 D E IN-1 DSL G-1 IN-2 ISP G-2 L2TP IN-3 Radius IN-4 Reauthorizing prepaid IN-5 TCP IN-6 VRF G-5 VSA IN-7 IN-8