Datasheet

138
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
These vulnerabilities are addressed by Cisco IDs:
– CSCsd52629/CSCsd34759—VTP version field DoS
– CSCse40078/CSCse47765—Integer Wrap in VTP revision
– CSCsd34855/CSCei54611—Buffer Overflow in VTP VLAN name
Cisco’s statement and further information are available on the Cisco public website at
http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtml
This problem is resolved in Release 12.1(26)E7. (CSCsd34855)
• Symptoms: Router may generate and/or forward crafted IP packets with the source IP address being
the routers tunnel interface for GRE or mGRE tunnels. Incorrect packet decoding may be seen with
“debug tunnel.”
Conditions: The router needs to receive a specially crafted GRE packet sent to the tunnel end-point.
The outer IP packet must come from the configured tunnel source and be sent to the configured
tunnel destination IP address Present Routed bit must be set to 1.
Workaround: Upgrade Cisco IOS to a version containing fixes for: CSCuk27655 or CSCea22552 or
CSCei62762.
Further information: On the 6th September 2006, Phenoelit Group posted an advisory:
Cisco Systems IOS GRE decapsulation fault
Cisco’s statement and further information are available on the Cisco public website at:
http://www.cisco.com/warp/public/707/cisco-sr-20060906-gre.shtml
This problem is resolved in Release 12.1(26)E7. (CSCei62762)
• A memory leak might occur when protocol filtering is enabled. This problem is resolved in
Release 12.1(26)E7. (CSCsd45419)
• You might exceed the 255 buffer character limit for the mac-address-table static command if you
enter too many interface names for the MAC in the same command. The following message is
displayed:
Enter configuration commands, one per line. End with CNTL/Z.
% Incomplete command.
Workaround: Split the command that is specifying the interfaces into multiple commands. This
problem is resolved in Release 12.1(26)E7. (CSCsc54552)
• SNMP version 3 user information might disappear after a switchover or a reload. This problem is
resolved in Release 12.1(26)E7. (CSCsd22650)
• The multicast traffic rate might be displayed as low or zero when you enter the show ip mroute
active command. This situation has no impact on performance because traffic is forwarded by
hardware. This problem is resolved in Release 12.1(26)E7. (CSCsd51420)
• When you enter the ip inspect command for Structured Query Language (SQL) packets, a memory
leak occurs in the IP input process. This problem is resolved in Release 12.1(26)E7. (CSCsb96107)
• Systems Network Architecture (SNA) packets are not bridged when VLAN 1025 is used on the
bridged interface. When this problem occurs, SNA sessions cannot be established. This problem
occurs on a Supervisor Engine 2. This problem is resolved in Release 12.1(26)E7. (CSCsc05015)
• Hardware switching is disabled because of an MLS CEF sanity failure after the following message
is displayed:
%MLSCEF-SP-2-FREEZE: hardware switching disabled on card
This problem is resolved in Release 12.1(26)E7. (CSCsd64158)