Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(8)

• CSCdp21739

Changing the status of the interface on a PA-A3 port adapter might cause routes to be removed from

the Enhanced Interior Gateway Routing Protocol (EIGRP) topology table.

Workaround: Issue the shutdown interface configuration command followed by the no shutdown

interface configuration command.

• CSCdp23921

Under rare conditions, a Cisco RSP7000 router that is running Cisco IOS Release 12.0(6.6) with a

Versatile Interface Processor (VIP) interface might refuse to send or receive any encrypted traffic.

Once the interface gets into this state, it will drop all encrypted traffic until either you reload the

router, or disable encryption and reenter the crypto map.

To determine whether a VIP is in this condition, you can enter the show crypto map EXEC

command and the show crypto cisco connections privileged EXEC command. If the crypto map

is listed with a negative connection ID that does not appear in the crypto connection table, then this

problem is occurring.

There is no workaround.

• CSCdp24644

If devices that can share the same IP address at different times are connected behind an MPC, some

Multiprotocol over ATM (MPOA) shortcuts might not be valid after they switch over the IP address.

There is no workaround.

Novell IPX, XNS, and Apollo Domain

• CSCdk67783

IPX allows the primary interface and multiple ISL subinterfaces to have the same IPX network

number and encapsulation.

Workaround: Do not configure interfaces with the same IPX network number.

• CSCdp13795

If you are using IPX Enhanced Interior Gateway Routing Protocol (EIGRP), you might experience

an inconsistency in Service Advertising Protocol (SAP) updates on a remote router if the serial

interface is brought down for a brief time and then brought up.

Workaround: Enter the clear ip eigrp neighbors EXEC command or enter the

no ipx linkup-request sap interface configuration command for the serial interfaces.

• CSCdp19523

If an IPX route goes down in a multiple path topology, the 85XX lower layer switch engine might

get out of synchronization with the Layer Three IPX routing table. A lower layer forwarding and

switching anomaly might occur if the router first receives a “down” notification for a network from

the same host that originally notified the router about that network and then the router shortly

afterwards receives a good route to the network from another host. There is no workaround.

Wide-Area Networking

• CSCdk07546

Retransmitted frames by an Advanced Peer-to-Peer Networking (APPN) router using remote

source-route bridging are truncated. There is no workaround.