Cisco IOS Software is the world's leading network infrastructure software delivering a seamless integration of technology innovation business-critical services and hardware support. Currently operating on over ten million active systems ranging from the small home office router to the core systems of the world's largest service provider networks Cisco IOS Software is the most widely leveraged network infrastructure software in the world.

Advanced IP Services for 1841 Routers

Cisco 1841 (Modular) Integrated Services Router

Releases:

• 12.3(8)T
• 12.3(11)T
• 12.3(8)YG