Cisco Systems® announces Cisco IOS® Software updates for Cisco® Catalyst® Catalyst 3750, Catalyst 3560, Catalyst 3550, andCatalyst 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.
NEW FEATURES IN CISCO IOS SOFTWARE RELEASE 12.2(25)SEB
Table 1 lists the features that are delivered in Cisco IOS Software Release 12.2(25)SEB.
Table 1. Cisco IOS Software Release 12.2(25)SEB New Features
Feature
Cisco Catalyst 3750 Series-Advanced Services
Cisco Catalyst 3750 Series-IP Services
Cisco Catalyst 3750 Series-IP Base
Cisco Catalyst 3560 Series-Advanced Service
Cisco Catalyst 3560 Series-IP Services
Cisco Catalyst 3560 Series-IP Base
Cisco Catalyst 3550 Series-IP Services
Cisco Catalyst 3550 Series-IP Base
Cisco Catalyst 2970 Series-LAN Base
Multicast EtherChannel® Load Balancing
E
E
E
E
E
E
E
E
E
Dynamic ARP Inspection
E
E
X
E
E
X
E
X
N
IP Source Guard
E
E
X
E
E
X
E
X
N
Private VLANs
E
E
X
E
E
X
E
X
N
Port Security for Voice VLANs
X
X
X
X
X
X
X
X
X
IGMP Leave Timer Change
X
X
X
X
X
X
X
X
X
N No plans to add platform support for this feature
X Feature is new for this platform
E Feature exists for this platform
Table 2 lists the fixed-configuration Cisco Catalyst switches supported with this software release.
Because of export restrictions on strong cryptography software, a separate image is required for the cryptographic features (Secure Shell [SSH] Protocol, Simple Network Management Protocol Version 3 [SNMPv3], and Kerberos Protocol). These software images can be downloaded from the corresponding Triple Data Encryption Standard (3DES) area of the links provided in this section. Note that the Cisco Advanced IP Services license is available only in cryptographic format.
Product Information
Additional product information is available at the following URLs.
Figure 1 displays Cisco IOS Software Release 12.2(25)SEB functions relative to the 12.2S and 12.2SE releases and identifies the recommended migration path.
