Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(7)

LAT

• CSCdm82005

The following line commands are not supported in Cisco IOS Release 12.0(5.5) through 12.0(6):

the session-limit command, the absolute-timeout command, and online help for the lat command.

There is no workaround.

Miscellaneous

• CSCdk41197

A Multiport Basic Rate Interface (MBRI) might pause indefinitely in “awaiting establishment” and

“tei assigned” modes. Entering the clear interface bri interface number command establishes

multiple frames on the port and allows another ISDN call to be made. There is no workaround.

• CSCdk58186

Half duplex should only be configured on an interface that is configured with a half duplex protocol

(such as SDLC) or bisynchronous encapsulations.

Workaround: Configure the interface for full duplex when not specifically running a half-duplex

protocol. The interface command to do this is full-duplex.

• CSCdm00627

A Cisco AS5800 router shelf might reload because of a bus error after configuring “ds0 busyout”

when calls are up on the controller. There is no workaround.

• CSCdm04888

If you change the media type for an Ethernet interface from auto select to 10BaseT, the default

configuration might change to AUI. An explicit interface reset will bring up the interface correctly.

Workaround: Set media-type to auto-select.

• CSCdm13853

A Cisco 3600 series router connecting via serial interface using WIC-1T to an AS/400 Synchronous

Data Link Control (SDLC) interface might experience problems keeping the line up. After the line

goes active on the AS/400 side, debugs in the router show one or two exchange identification (XID)

frames from the host right before the line goes down. There is no workaround.

• CSCdp22947

In Cisco IOS Release 12.0(7.1) and Cisco IOS Release 12.0(7.2), Address Resolution Protocol

(ARP) replies are not sent for static Network Address Translation (NAT) entries. For example, the

router does not respond to ARP requests for 2.2.2.3 from the

ip nat inside source static 1.1.1.1 2.2.2.3 static NAT command.

Workaround: Upgrade to a later release.

• CSCdm25998

Traffic shaping is not working on a Fast Ethernet Interface on a Cisco 4700 router with Fast

Switching enabled. There is no workaround.

• CSCdm47012

Smart Modular and Sharp Flash cards using the LH28F016SCT chip set might report unrecoverable

write errors on several Cisco platforms, including 7200 series, 7500 series, and GSR routers. The

original Smart Modular and Intel Flash Cards are not affected. There is no workaround.