User guide

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Release Notes for Cisco IOS Release 12.4T
OL-8012-09 Rev. B0
Platform-Specific Information
Cisco 1800 Series Routers (Fixed Configuration and Modular)
This section contains the following sections with information that is specific to the Cisco 1800 series
routers:
• Memory Recommendations, page 34
• Supported Hardware, page 34
• Feature Support, page 37
• Additional Notes for the Cisco 1800 Series, page 37
Memory Recommendations
For memory recommendations for the Cisco 1800 series routers 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 1800 series routers:
• Cisco 1801, Cisco 1802, and Cisco 1803, wireless and non-wireless
• Cisco 1811 and Cisco 1812, wireless (fixed configuration)
• Cisco 1811 and Cisco 1812, without wireless (fixed configuration)
• Cisco 1841 (modular)
• Cisco 1861 (integrated services)
For detailed descriptions of the new hardware features, see the “New and Changed Information” section
on page 101.
For additional information about supported hardware for this platform and release, see the
Cisco Software Advisor at the following location:
http://tools.cisco.com/Support/Fusion/FusionHome.do
Cisco 1801 Routers
The Cisco 1801 router has the following hardware components:
• One Fast Ethernet port
• One ADSL over POTS port
• One ISDN-BRI S/T port
• Eight Fast Ethernet Switch ports
Cisco 1801W Routers
The Cisco 1801W router has the following hardware components:
• One Fast Ethernet port
• One ADSL over POTS port
• One ISDN-BRI S/T port
• Eight Fast Ethernet Switch ports