Specifications

119
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(4)
Wide-Area Networking
• CSCdj71680
In a DDR environment, a packet that starts a dial might use an incorrect dialer map to reach a
remote destination. The problem is intermittent and the same packet might select the proper dialer
map upon the next try. There is no workaround.
• CSCdj77057
Occasionally, the show dialer map command causes a Cisco router to reload. This condition only
occurs when connections are dropped during the execution of the command. This problem affects
Cisco IOS Releases 11.2(11)P and later. There is no workaround.
• CSCdj82342
Running Frame Relay over ISDN on a Cisco 3640 router initially works, but starts to fail when the
interface input queue becomes full and all incoming packets are dropped. The interface input queue
wedge problem cannot be resolved by issuing the lock or unlock commands. The router should be
reloaded.
• CSCdk55610
For Cisco IOS Release 11.2, when you configure more than one dialer string and a dialer
load-threshold, additional B-channels will only be opened when they are connected to the first
dialer string. When connected to the second dialer string, only one B-channel will be opened, even
if the threshold is exceeded. In Cisco IOS Release 11.3, the dialer load-threshold does not work at
all. There is no workaround.
• CSCdk61104
If the group-async interface is part of a dialer interface that does not have PPP authentication turned
on, and the dialer rotary-group configuration is removed, the PPP users are not authenticated.
Workaround: Reconfigure either the ppp authentication command or group range command on the
group-async interface.
• CSCdk66454
You might experience a reload using X.25 switching in x25swt_last_resort. There is no
workaround.
• CSCdk68549
Removing the dialer remote-name name command might cause a Cisco router to reload if the router
is actively trying to dial the named remote site.
Workaround: Issue the shutdown command from config-if mode before issuing the
no dialer remote-name [name] command.
• CSCdk72458
If packets with CCP are compressed when the PAK_PRIORITY bit is set, sequence errors will
create compression dictionary resets. This only occurs when there is congestion on the PPP output
queue (that is, there are paks waiting there which could be reordered).
Workaround: In cases of extreme congestion, more bandwidth should be supplied.
• CSCdk73514
A Cisco AS5200 access server might reload when using Microsoft PPP callback. An error message
similar to the following will be displayed:
System restarted by bus error at PC 0x22317282, address 0xD0D0D15
Workaround: Define static dialer maps.