Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(6)

• CSCdm55716

An ATM subinterface might drop packets when Distributed CEF (DCEF) is disabled. This problem

only occurs on subinterfaces created after DCEF is on, and then is turned off.

Workaround: Enable, and then disable DCEF after creating a new subinterface.

• CSCdm55823

Prior to Cisco IOS Release 12.0(6) tag forwarding fails. The show adjacency command shows that

all of the tag adjacencies are marked incomplete. There is no workaround.

• CSCdm57097

When there is traffic (ping) on the network, the IP cache entries (for one network reachable through

two equal cost paths) are deleted (STALE RECURSIVE) and created every minute. There is no

workaround.

• CSCdm57550

A Cisco AS5800 access server might send incorrect port numbers to a radius server in AAA

accounting. Regardless of which modem slot users get connected, the highest port number a user

can obtain is 144, and there are multiple users with the same port number. There is no workaround.

• CSCdm57609

A PA-A2 port adapter might cause memory corruption if you use SVCs with an ARP-server when

you shut down the interface. There is no workaround.

• CSCdm58776

If a router running CET encryption has many connection setup attempts happening at once, some

might time out prematurely. Also, some connection setup attempts might not setup properly. There

is no workaround.

Novell IPX, XNS, and Apollo Domain

• CSCdk04507

Routers running IPX and EIGRP with Cisco IOS Release 11.2 or greater can reload when there are

frequent interface up and down transitions. This problem is most common with dial-up interfaces.

Workaround: Disable IPX and EIGRP.

• CSCdm46556

In Cisco IOS Release 11.2, if SAP passive update is configured on an interface, the services learned

on that interface never age out of the table. In Release 11.3 and later, this also occurs on networks

learned on RIP passive interfaces. There is no workaround.

Wide-Area Networking

• CSCdj39383

A Cisco router with over 180 data-link connection identifiers (DLCIs) can not boot properly due to

excessive console log messages related to the startup of Frame Relay PVCs. There is no

workaround.

• CSCdm01618

When a Cisco router is functioning as an X.28 packet assembler/disassembler (PAD), it should send

an X on to the data terminal equipment (DTE) as soon as it enters the data transfer mode if

parameter 5 is set to 1. The PAD does not. There is no workaround.