Specifications

157
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(2)
• CSCdk46784
Router might fail when running VPDN L2F sessions over ISDN.
• CSCdk46815
LANE client might be dropped on a Cisco 7200 router. The workaround is to disable the SSCOP
quick poll.
• CSCdk47523
An attempt to switch an incoming call, when all outgoing channels are in use, causes a memory
leak.
• CSCdk48335
You cannot send break signal to a device connected to the asynchronous port on a Cisco 2511,
through a PAD connection.
• CSCdk51529
The router might reload when exiting a PAD connection. The problem first appeared in Cisco IOS
interim Release 11.3(6.3).
• CSCdk52583
Autoselect functions on VTY lines are not supposed to work, and should be disallowed.
• CSCdk55436
A Cisco 1600 series router fails or reboots when Multilink PPP is negotiated on a link.
• CSCdk56005
Under some circumstances when using X.25 switching, the router might reload.
One example is when a call is switched to an XOT destination, which is then Cleared (when no Call
Confirm was received).
• CSCdk62967
The Cisco 2600 series routers with ISDN configurations—both Basic Rate Interface (BRI) and
Primary Rate Interface (PRI)—can reload with a watchdog timeout when the ISDN interfaces are
active/operational. This problem occurs only on Cisco 2600 series routers running Cisco IOS
Release 11.3(6.2)T and later, Release 12.0(1) and Release 12.0(1)T. There is no workaround.
• CSCdk63455
A router running translated X.25 to Virtual Async connections (PPP/IPX) might reload. This
appears to be an infrequent occurrence.
• CSCdk64193
Enabling IP multicast prevents LANE from populating multicast MAC addresses. As a result, it
prevents IP routing protocols to work properly on LANE interfaces.
Workaround: Disable IP multicast.