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PRODUCT BULLETIN NO. 2797

NEW CISCO IOS SOFTWARE RELEASE 12.2(25)SEB FOR CISCO

CATALYST 3750 METRO, CATALYST 3750, CATALYST 3560,

CATALYST 3550, AND CATALYST 2970 SERIES SWITCHES

Cisco Systems

announces Cisco IOS

and Catalyst 2970 series intelligent Ethernet switches. This new software release furthers Cisco leadership in providing

secure, reliable, and feature-rich LAN switching solutions.

OVERVIEW

This product bulletin contains content and delivery information for Cisco IOS Software Release 12.2(25)SEB. For more information about the

Cisco IOS Software release process, refer to Product Bulletin 537.

The following new Cisco IOS Software features are available as a free software upgrade to current users of Cisco Catalyst 3750, Catalyst 3560,

Catalyst 3550, and Catalyst 2970 series switches:

Dynamic ARP inspection (DAI) and IP Source Guard (IPSG) support added to the IP Base image for the Cisco Catalyst 3750, Catalyst 3560,

and Catalyst 3550 series. DAI and IPSG use a higher level of network security by preventing breaches such as "man-in-the-middle" attacks.

Private VLAN support added to the IP Base image for the Cisco Catalyst 3750 and Catalyst 3560.

Port security for voice VLANs support facilitates the configuration of voice VLANs for access ports such that an IP phone can not be moved

within a switch unless the switch is reconfigured. Only one identified, secure PC is allowed per IP phone, and the PC can bypass the IP phone

if desired.

Internet Group Management Protocol (IGMP) Leave Timer Change support.

Reformation software packaging support allows consistent image naming across the Cisco Catalyst switching portfolio. Cisco IOS Software

Release 12.2(25)SEB will support IP Advanced Services, IP Services, IP Base, and LAN Base images. Images formally known as AIS, EMI,

SMI, and EI will now map to IP Advanced Services, IP Services, IP Base, and LAN Base, respectively.

Software updates for Cisco

Page 1 of 5

Catalyst

Catalyst 3750, Catalyst 3560, Catalyst 3550,