Specifications

154
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(2)
• CSCdk13645
When using IPX Enhanced IGRP incremental SAP updates (RSUP), the server tables between two
or more Enhanced IGRP neighbors might become inconsistent. Specifically, the problem might
occur when as few as three dozen servers go away at the same time, while the routes to those servers
remain in the routing table, and if there are multiple Enhanced IGRP neighbors or paths to a
neighbor. The “down” flash update for some of the recently downed servers isn’t being sent out all
interfaces, so some devices have the servers removed and others do not.
Workaround: Clear the IPX Enhanced IGRP neighbors on the unit that shows these servers
remaining in the table.
• CSCdk23276
A Cisco 2500 router configured with the command debug x25 events, fails as it opens an X.25 VC
for IPX, XNS, Vines, or DECnet.
• CSCdk42896
IPXWAN does not work when a Cisco 4500 or Cisco 7200 series router is booted or reloaded with
IPXWAN configured as the master of the IPXWAN link (its local IPXWAN node ID or IPX internal
network number is larger than that of the router at the other end of the WAN link).
You will see messages like these after IPXWAN debugging is enabled by issuing the command
debug ipx ipxwan:
00:06:45: IPXWAN: Rcv TIMER_REQ on Serial5/0/72000:0, NodeID 0, Seq 1
00:06:45: IPXWAN: Rcv TIMER_REQ NodeID 7500 as SLAVE asking for unnumbered on Serial5/0
00:07:05: IPXWAN: Rcv TIMER_REQ on Serial5/0/72000:0, NodeID 0, Seq 2
00:07:05: IPXWAN: Rcv TIMER_REQ NodeID 7500 as SLAVE asking for unnumbered on Serial5/0h
00:07:25: IPXWAN: Rcv TIMER_REQ on Serial5/0/72000:0, NodeID 0, Seq 0
00:07:25: IPXWAN: Rcv TIMER_REQ NodeID 7500 as SLAVE asking for unnumbered on Serial5/0
Workaround: After the router is rebooted, issue the following interface commands:
– no ipx ipxwan
– ipx ipxwan parameters.
As an alternative, create a another pseudo IPXWAN interface which would allow IPXWAN to
function after reloads; for example:
!
interface Loopback0
no ip address
no ip directed-broadcast
!
interface Tunnel0
no ip address
no ip directed-broadcast
ipx ipxwan 0 unnumbered dtp-11
tunnel source Loopback0
tunnel destination 1.2.3.4
!
• CSCdk44590
The router gradually loses memory when running IPX Enhanced IGRP with ipx sap-incremental
commands configured on its interface(s). The memory leak occurs when SAP general requests are
received on the interfaces. By default, ipx sap-incremental is enabled on non-LAN interfaces
which are configured for IPX Enhanced IGRP.