User guide
15
Release Notes for Cisco IOS Release 12.4T
OL-8012-09 Rev. B0
Platform-Specific Information
Cisco Secure Router 500 Series
This section contains the following sections with information that is specific to the Cisco secure
router 500series:
• Introduction, page 15
• Memory Recommendations, page 15
• Supported Hardware, page 15
• Feature Support, page 16
Introduction
The Cisco Secure Router 520 Series routers are designed for small businesses with up to 50 users and
teleworkers who want secure connectivity to corporate LANs and to the Internet. These routers provide
advanced security features that include secure Virtual Private Network (VPN) access and comprehensive
threat defense with Cisco IOS Firewall, Intrusion Prevention Solution (IPS), and URL filtering. The
Cisco Secure Router 520 Series routers also provide dynamic routing and advanced quality of service
(QoS) features. They are available in two Ethernet models and four DSL models.
Ethernet Models:
• Cisco Secure Router 520 Ethernet-to-Ethernet (without wireless functionality).
• Cisco Secure Router 520 Ethernet-to-Ethernet Wireless (with wireless functionality).
DSL Models:
• Cisco Secure Router 520 ADSL-over-POTS (without wireless functionality).
• Cisco Secure Router 520 ADSL-over-POTS Wireless (with wireless functionality).
• Cisco Secure Router 520 ADSL-over-ISDN (without wireless functionality).
• Cisco Secure Router 520 ADSL-over-ISDN Wireless (with wireless functionality).
Memory Recommendations
For memory recommendations for the Cisco secure router 500series in Cisco IOS Release 12.4T, see the
“Memory Recommendations” section on page 8.
Supported Hardware
Cisco IOS Release 12.4T supports the following Cisco secure router 500series:
• Cisco SR520-FE-K9
• Cisco SR520W-FE-K9
• Cisco SR520-ADSL-K9
• Cisco SR520W-ADSL-K9
• Cisco SR520-ADSLI-K9,
• Cisco SR520W-ADSLI-K9
For detailed descriptions of the new hardware features, see the “New and Changed Information” section
on page 101.