1 / 13

Setup a Cisco Switch with AAA Server

Setup a Cisco Switch with AAA Server. CS580 Winter 2005 Presented by: Chris Orona Kevork Tamamian Xuong Tsan. What is AAA Server?. AAA ( Authentication, Authorization, Accounting) For example: RADIUS (Remote Authentication Dial-In User Service)

andrew
Download Presentation

Setup a Cisco Switch with AAA Server

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Setup a Cisco Switch with AAA Server CS580 Winter 2005 Presented by: Chris Orona Kevork Tamamian Xuong Tsan

  2. What is AAA Server? • AAA ( Authentication, Authorization, Accounting) For example: RADIUS (Remote Authentication Dial-In User Service) TACACS (Terminal Access Controller Access Control System)

  3. TACACS • Specified in RFC 1492 • Uses port 49 (TCP or UDP) • XTACACS – TACACS extensions created by Cisco

  4. TACACS server on a switch switch(config)# login tacacs switch(config)# tacacs-server host 192.20.22.7 switch(config)# tacacs-server key "I am cool" switch(config)# tacacs-server attempts 3 switch(config)# tacacs-server timeout 5

  5. TACACS server cont.. TACACS Verification switch# show tacacs Enable use-tacacs:Enabled Login tacacs:Enabled tacacs-server last-resort:password tacacs-server hosts:192.20.27.7 tacacs-server key:I am cool tacacs-server login attempts:3 tacacs-server timeout:5 seconds tacacs-server directed-request:Disabled

  6. TACACS+ • An new version of TACACS, however less compatible • Uses a separate server for AAA

  7. TACACS+ packet • Major/Minor version • Packet Type • Authentication, Authorization, or Accounting • Flags • Whether encryption is set

  8. TACACS+ Traffic

  9. Authentication • Enables the switch/router to ask for passwords on a remote server • Set up passwords for login and enable access • Backup with enable password in case server is down aaa new-model aaa authentication login default tacacs+ enable aaa authentication enable default tacacs+ enable

  10. Authorization • Request authorization for events. Obtaining a shell, configuring, or certain commands • Again, have a backup command in case the server is down. aaa authorization exec default tacacs+ if-authenticated

  11. Accounting • Log access and attempted access to a remote server • Can log inbound and/or outbound connections • Types of accounting • start-stop: records without waiting for the server • stop-only: only records when action is completed • wait-start: waits for log to be sent before allowing action aaa accounting exec default start-stop tacacs+ aaa accounting connection default start-stop tacacs+

  12. ClearBox RADIUS and TACACS+ Server 2.4.5 • Available for Windows • Can authenticate against a Windows domain or SQL database (Access, SQL server, ODBC, etc.) • $399, or free trial version with limited password functionality.

  13. Reference Links • http://www.cisco.com/en/US/products/hw/switches/ps637/products_configuration_guide_chapter09186a008007da46.html#15411 • http://www.cisco.com/en/US/tech/tk59/technologies_configuration_example09186a0080093c7c.shtml • http://www.cisco.com/en/US/tech/tk59/technologies_tech_note09186a0080094e99.shtml • http://www.informit.com/articles/article.asp?p=170744&seqNum=2 • http://www.cisco.com/pcgi-bin/search/search.pl?searchPhrase=cisco+router+1601+support+tacacs&x=0&y=0&nv=Search+All+Cisco.com%23%23cisco.com&nv=Technical+Support%26Documentation%23%23cisco.com%23TSD&language=en&country=US&accessLevel=Guest&siteToSearch=cisco.com • http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800ca7a7.html#16099 • Clearbox server: http://www.xperiencetech.com/

More Related