Cisco Cisco IOS Software Release 12.4(23) Notas de publicación
620
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(7a)
Conditions: This symptom has been observed on the Cisco-Nas-Port attribute on a radius server.
Workaround: There is no workaround.
•
CSCsd10306
Symptoms: IP SLA packets are dropped in the network. They may also cause a buffer leak on some
Cisco routers. Frequency of the problem is very low, less then 1%.
Cisco routers. Frequency of the problem is very low, less then 1%.
Conditions: This symptom is observed on IP SLA packets that have an MPLS label applied on the
source router.
source router.
Workaround: There is no workaround.
Further Problem Description: The IP SLA packets in question have a corrupted IP header.
IP Routing Protocols
•
CSCef03271
Symptoms: BGP fails to advertise routes to peers that were learned from another source.
Conditions: This symptom occurs when the neighbor clears the BGP session.
Workaround: Clear the session using a soft reset and enter the clear ip bgp neighbor-address soft
in command.
in command.
•
CSCeg39601
Symptoms: The IPv6 multicast RP encapsulation tunnel remains down.
Conditions: This symptom occurs on the configuration of the ipv6 pim rp-address command. The
resulting encapsulation tunnel is created but remains always in down state.
resulting encapsulation tunnel is created but remains always in down state.
Workaround: There is no workaround.
•
CSCek33991
Symptoms: A router may reset unexpectedly when it is in the midst of output of the results of the
show interface dampening command, and the interface is deleted from another vty connection.
show interface dampening command, and the interface is deleted from another vty connection.
Conditions: This symptom can be encountered if concurrent connections are opened to a router, and
the show interface dampening command is issued while interface(s) are deleted.
the show interface dampening command is issued while interface(s) are deleted.
Workaround: Ensure interfaces with dampening configured are not deleted while the show
interface dampening command can be possibly issued on another vty.
interface dampening command can be possibly issued on another vty.
•
CSCsc72090
Symptoms: A router that is configured for EIGRP may fragment packets if the MTU on the interface
is set to a value that is lower than 1500 bytes. This situation may cause additional overhead for the
receiving router that must reassemble the packets.
is set to a value that is lower than 1500 bytes. This situation may cause additional overhead for the
receiving router that must reassemble the packets.
Conditions: This symptom is observed on a Cisco router that transmits packets that are larger than
the MTU on the interface and occurs because EIGRP does not automatically adjust to the value of
the MTU on the interface.
the MTU on the interface and occurs because EIGRP does not automatically adjust to the value of
the MTU on the interface.
Workaround: There is no workaround.
Further Problem Description: The fix for this caveat prevents EIGRP from sending packets that are
larger than the MTU of the interface MTU in order to prevent fragmentation.
larger than the MTU of the interface MTU in order to prevent fragmentation.
•
CSCsc78813
Symptoms: While using NAT in an overlapping network configuration, the IP address inside a DNS
reply payload from the nameserver is not translated at the NAT router.
reply payload from the nameserver is not translated at the NAT router.