Specifications

45
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
• CSCdr76940—MPLS loadsharing inconsistincy for 0.0.0.0
• CSCds56717—sh tag for shows untagged while remote binding is available
• CSCds58727—cannot ping across mpls te tunnel
• CSCdr42215—SRP needs to run service downl - fl to upgrade rom vers permanentl
• CSCdp24155—ISIS:(route-leaking) local L2 interfaces not redistributed into L1
This release has been replaced with the following software solution(s), which are available on CCO:
• 12.0(13)S2
In order to increase network availability, Cisco recommends that you upgrade affected IOS images with
the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected
IOS images. Any pending order will be substituted by the replacement software images.
Caution Please be aware that failure to upgrade the affected Cisco IOS images may result in
network downtime.
The terms and conditions that governed your rights and obligations and those of Cisco, with respect to
the deferred images will apply to the replacement images.
Important Notes for Cisco IOS Release 12.0(10)S
Unicast RPF—New ACL Bypass and Logging Functions
Access Control List (ACL) functions have been added to the Unicast RPF feature that will allow new
logging capability and exceptions to Unicast RPF checks. Interface-specific counters for Unicast RPF
drops have been included in show ip interface.
The ip verify unicast reverse-path [acl] command enables the checking of source IP addresses in
packets that are being Cisco Express Forwarding (CEF) or distributed Cisco Express Forwarding
(dCEF)-switched. If the source IP address is known to be reachable through the interface from which
the packet was received, the packet is forwarded. Otherwise, the packet is dropped and counted once on
the interface over which the packet was received and once globally. The interface counter is part of the
show ip int int output, and the global counter is part of the show ip traffic output.