The Layer 3 Cisco® 1- and 2-Port Fast Ethernet High-Speed WAN interface cards (HWICs) supported on Cisco Integrated Services Routers offer small-to-large-sized businesses and enterprise branch-office customers the option to add Layer 3 routed ports with many advanced features, including quality-of-service (QoS) and rate-limiting capabilities
Table 1. Platform Support
Router Chassis
Maximum Number of 1 Port HWICs
Maximum Number of 2 Port HWICs
Cisco 1921
1
1
Cisco 1941
2
1
Cisco 1941W
2
1
Cisco 2901
2
2
Cisco 2911
2
2
Cisco 2921
2
2
Cisco 2951
2
2
Cisco 3925
4
4
Cisco 3945
4
4
Cisco 3925E
3
3
Cisco 3945E
3
3
Cisco 1841
1
1
Cisco 2801
2
1
Cisco 2811
2
1
Cisco 2821
2
1
Cisco 2851
2
1
Cisco 3825
4
2
Cisco 3845
4
4
Table 1A provides relevant software information
Router Chassis
Software Release
Minimum Software Package
Cisco 1921
15.0(1)M2
IP Base
Cisco 1941
15.0(1)M
IP Base
Cisco 1941W
15.0(1)M
IP Base
Cisco 2901
15.0(1)M
IP Base
Cisco 2911
15.0(1)M
IP Base
Cisco 2921
15.0(1)M
IP Base
Cisco 2951
15.0(1)M
IP Base
Cisco 3925
15.0(1)M
IP Base
Cisco 3945
15.0(1)M
IP Base
Cisco 3925E
15.1(1)T2
IP Base
Cisco 3945E
15.1(1)T2
IP Base
Cisco 1841
12.4(20)T
IP Base
Cisco 1861
12.4(20)T
IP Base
Cisco 2801
12.4(20)T
IP Base
Cisco 2811
12.4(20)T
IP Base
Cisco 2821
12.4(20)T
IP Base
Cisco 2851
12.4(20)T
IP Base
Cisco 3825
12.4(20)T
IP Base
Cisco 3845
12.4(20)T
IP Base
Applications
The new HWICs provide additional Layer 3 routed ports with features equivalent to those on the motherboard of the integrated services routers. These Fast Ethernet interfaces can be used for physical LAN segregation, creation of a demilitarized zone (DMZ), or as a WAN interface. Broadband customers can use them to connect to an alternate provider that delivers service on an Ethernet port.
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