Datasheet

177
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
– WS-X6148-RJ-21
– WS-X6316-GE-TX
– WS-X6324-100FX
– WS-X6416-GE-MT
– WS-X6024-10FL-MT
This problem is resolved in Release 12.1(22)E3. (CSCef23843)
• A specifically crafted Transmission Control Protocol (TCP) connection to a telnet or reverse telnet
port of a Cisco device running Internetwork Operating System (IOS) may block further telnet,
reverse telnet, Remote Shell (RSH), Secure Shell (SSH), and in some cases Hypertext Transport
Protocol (HTTP) access to the Cisco device. Telnet, reverse telnet, RSH and SSH sessions
established prior to exploitation are not affected.
All other device services will operate normally. Services such as packet forwarding, routing
protocols and all other communication to and through the device are not affected.
Cisco will make free software available to address this vulnerability. Workarounds, identified below,
are available that protect against this vulnerability.
The Advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20040827-telnet.shtml
This problem is resolved in Release 12.1(22)E3. (CSCef46191)
• Traffic might be dropped if you enter the no ip cef global configuration command. This problem is
resolved in Release 12.1(22)E3. (CSCin40371)
• A reload might occur when traffic enters a port configured with the switchport protocol ip auto
command. This problem is resolved in Release 12.1(22)E3. (CSCin77984)
Resolved General Caveats in Release 12.1(22)E2
• The no ip vrf vrf_name command does not delete the VRF configuration. This problem is resolved
in Release 12.1(22)E2. (CSCeb78347)
• PVLAN ports on an isolated VLAN on WS-6148-GE-TX and WS-6548-GE-TX switching modules
might not be able to send or receive traffic through a promiscuous port.This problem is resolved in
Release 12.1(22)E2. (CSCee45867)
• If the FIB TCAM is full, a memory leak or a reload might occur or you might observe high
supervisor engine utilization. This problem is resolved in Release 12.1(22)E2. (CSCeb85827,
CSCeb29888, CSCec14802, CSCec42634, CSCed58661, CSCee00311, CSCee22821)
• A reload might occur if you enter the clear ip route * command. This problem is resolved in
Release 12.1(22)E2. (CSCee00311: refer to CSCeb85827)
• When you use local-proxy-arp and HSRP, the active MSFC could respond to ARP requests with the
BIA MAC address and the redundant MSFC might keep cached ARP entries that should have been
deleted. This problem is resolved in Release 12.1(22)E2. (CSCed72287)
• After you configure a tunnel to support DECnet with assigned DECnet cost and then delete the
tunnel configuration, a reload might occur if you disable DECnet routing. This problem is resolved
in Release 12.1(22)E2. (CSCed88563)
• Following switchover to a redundant supervisor engine, any EtherChannels on the newly active
supervisor engine are not active and the newly redundant supervisor engine does not enter the
standby state. This problem is resolved in Release 12.1(22)E2. (CSCee44248)