3Com 11.1 Network Router User Manual


 
42 NETBUILDER SOFTWARE VERSION 11.1 RELEASE NOTES
<Bc>/<cir>. If Tc is not 1 second, the Frame Relay frames may be erroneously
dropped due to the incorrect calculation of the throughput rate threshold.
History-Based
Compression
Negotiation Failure
If you are using history-based compression on a line with excessive errors and the
negotiation attempts exceed the retry count, the device must be rebooted to clear
the condition and reset the retry count.
IPX to Non-IPX
Configuration Error
A mechanism does not exist to prevent adding a path from a non-IPX routing port
to an IPX routing port. If this situation occurs, the router stops routing IPX traffic,
even though the primary port has been up the whole time. To restart IPX routing,
re-enable the port.
MBRI Ownership During
Board Swapping
Port ownership and port/path naming inconsistencies can occur as MBRI boards
are swapped in and out of a NETBuilder II bridge/router chassis. Replacing an MBRI
board with a non-MBRI board in the same slot requires that the NETBuilder II
bridge/router be rebooted. After the bridge/router is rebooted, there are no
port/path naming problems.
Microsoft MPPE Patches
and Updates
Microsoft has acknowledged performance problems with their original
implementation of MPPE. You should use MSDUN1.2c or later for Windows 95
and apply Hot Fixes in article Q162230 for Windows NT. Contact your Microsoft
service provider for additional information and updates when they become
available.
MOSPF DLSw Multicast In a typical DLSwV2 configuration, the MOSPF cloud encompasses the WAN ports
and MOSPF control is enabled on the WAN ports and not on the LAN ports. At
present, you must enable MOSPF on the LAN ports that connect the SNA/NetBIOS
end systems as well; this problem will be fixed in a future release. Use:
SETDefault !<port> -MOSPF CONTrol = Enable
where !<port> is the LAN port(s) that connect the SNA/NetBIOS end systems.
Multiple Paths to BootP
Server
Multiple paths to a BootP server may cause a BootP reply to fail. If a BootP reply is
transmitted by a BootP server and not received by the router, flush the IP Routing
table and re-enable BootP on the port waiting for the IP address. BootP must be
re-enabled before route update are received.
NAT Service - Many to
One Outbound
Translation
NAT Many to One Outbound does not translate properly when multiple addresses,
on LHS, are specified using comma (,) notation. But NAT Many to One Outbound
translates properly when multiple addresses, on LHS, are specified in 10.3.1.0/24
notation.
NAT Service - TCP/UDP
Port Mappings
When the NETBuilder bridge/router is configured to use TCP/UDP Port Mapping
from port 23 (Telnet) to any other port number, the first command executed over
the session will fail due to extra characters inserted into the command string. All
subsequent commands issued for that session will succeed. If you encounter this
problem, execute the command again.
PPP Configuration
Display Errors
If you have no PPP ports configured on your bridge/router and you use the Show
Configuration -PPP command, the resulting display appears without section
headers. When there are correctly configured PPP ports, this problems is not
observed.