Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(12)

• CSCdr16095

This defect provides ATM Signalling Control Plane Failure Detection through signalling diagnostic

MIB objects so the Network Management Station can monitor and take appropriate corrective steps

in erroneous situations. There is no workaround.

• CSCdr53700

You may see the message "%ALIGN-3-SPURIOUS: Spurious memory access ..." when Microsoft

callback is being used and a callback fails to complete. The stack trace indicates the alignment error

occurred in the dial_if() function, called from dialer_enable_timeout().

There is no workaround.

• CSCdr77993

A Cisco 2600 series router running Cisco IOS Release 12.0(11.6) reloads when a call connects with

Multilink PPP configured on Dialer Interface. There is no workaround.

• CSCdr87607

When you load system software to upgrade from any version of the following Cisco IOS releases:

11.1 CC, 11.1 CA, 11.2 P, or 12.0 to any Cisco IOS Release 12.1 or later, the system logging

messages for Frame Relay DLCI and subinterface status change are suppressed, regardless of the

logging destination (console, buffer, or host).

Workaround: To resume generating Frame Relay DLCI logging messages, issue the logging event

dlci command. To resume generating subinterface status messages, issue the logging event subif

command.

Resolved Caveats—Cisco IOS Release 12.0(12)

All the caveats listed in this section are resolved in Cisco IOS Release 12.0(12). This section describes

severity 1 and 2 caveats and select severity 3 caveats.

Basic System Services

• CSCdm91180

If you use hardware compression and fancy queueing with two simultaneous traffic streams (for

example, FTP and Telnet), packets are not compressed. Entering the show compress EXEC

command will not provide any useful information. There is no workaround.

• CSCdp31382

IP Security (IPSec) configured with fast switching works only on serial interfaces and fails on other

types of interfaces. There is no workaround.

• CSCdp81754

A Cisco AS5300 access server reloads with a bus error at PC 0x6022A3C8. This situation occurs

during an attempt to telnet to a named-host. There is no workaround.