Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(8)

Miscellaneous

• CSCdj88748

The individual timeslots in a fractional T1/E1 circuit emulation service (CES) circuit might get

misaligned if an ATM uplink switchover or reroute occurs, and the content in each timeslot remains

error free even though the whole fractional circuit cannot be synchronized. This situation occurs

on Cisco 7200 series routers with PA-A2 port adapters with (CES) and Cisco LightStream

1010 5 Gbps modular switches with (CES) and pulse amplitude modulation (PAM).

• CSCdk56600

The Ascend-Idle-Limit attribute is defined as being a value in seconds, and when this attribute is

applied to a client using PPP mode, the value is retained in seconds. But if the Ascend-Idle-Limit

attribute is applied to a client that is using PPP interactive mode, the attribute is converted into a

value of minutes. For example, both 1 second and 59 seconds are treated as 1 minute. There is no

workaround.

• CSCdk61320

When you perform an encrypted Kerberized Telnet to a Cisco 7500 series router, the initial setup

goes fine, but nonsense output results when the decryption of packets from the router occurs on the

client side. There is no workaround.

• CSCdm06470

A Cisco router might reload if you enable Hot Standby Router Protocol (HSRP) on a cable interface

because HSRP does not function properly on cable interfaces. There is no workaround.

• CSCdm15911

If you are using IP Security (IPsec) in transport mode over a dialer with Multilink PPP and PPP

compression, a Cisco router might exhibit the following error message:

%SYS-2-GETBUF: Bad getbuffer, bytes= 58332 -Process= “Encrypt Proc”, ipl= 0, pid= 43

and traceback:

IPSEC(encapsulate): locally-sourced pkt w/DF bit set is too big, ip->tl=62324, mtu=1432

Workaround: Configure tunnel mode IPSec, or disable PPP compression.

• CSCdm33707

After a Cisco router is reloaded, the Encryption Service Adapter (ESA) cannot reestablish an active

crypto connection.

Workaround: Remove the crypto map, reload the router, and reapply the crypto map.

• CSCdm33977

In circumstances of increased stress and constant changes, a Cisco router that has a large number

of adjacencies on a multiaccess network and is using distributed Cisco Express Forwarding (CEF)

might display some prefixes in the LC that are not in the main Route Processor (RP) table. There

is no workaround.

• CSCdm62412

Spatial reuse protocol (SRP) hardware might receive and drop giant packets under OC-12 line rate

traffic with the Versatile Interface Processor (VIP) stressing memory usage. This condition might

occur in a tag switching configuration over paths that require the fragmentation of tag-encapsulated

IP packets. There is no workaround.