Cisco Cisco IOS Software Release 12.4(2)XB6

There are no new hardware features for this release.

There are no new software features for this release.

The following new hardware feature is supported in this release:

The Cisco Fast Ethernet HWICs are single-wide interface cards, available as a 1-port HWIC 
(HWIC-1FE) and as a 2-port HWIC (HWIC-2FE), that provide Cisco modular and integrated services 
routers with additional line-rate Layer 3 routed ports. The following enhancements have been made in 
Cisco IOS Release 12.4(11)XJ: 

Extended VLAN ID

HWIC-1FE Routed Port

HWIC one FE and two FE ports 

For more information about these features, see the following documentation on Cisco.com:

 

The following new software features are supported in this release: