User guide
36
Release Notes for Cisco Router and Security Device Manager 2.5
OL-5009-20
Caveats
–
The interface used for the primary backup connection is configured with an
Cisco SDM-supported IP address type.
–
The asynchronous interface is configured as the backup for a primary interface.
–
The IP address of the primary interface is changed.
When the IP address of the primary interface is changed, Cisco SDM displays a Yes or No warning
popup asking if you want to remove the backup configuration. If you choose Yes, Cisco SDM
removes the backup configuration, but the Interfaces and Connections window still shows the
backup option as disabled, preventing you from choosing the asynchronous interface as a backup
interface.
Workaround: Delete the asynchronous interface configuration using the Interfaces and
Connections window.
• CSCin48956
When the router is configured to use PPPoE, users may not be able to download a file using FTP or
display web pages from Internet hosts that they are able to ping or access using telnet. This can
happen if Cisco SDM is being used on a router with interfaces that Cisco SDM does not support,
such as Token Ring or VLAN interfaces. Cisco SDM does not deliver the command ip tcp
adjust-mss 1452 to unsupported interfaces.
Workaround: Use the CLI to add the ip tcp adjust-mss 1452 command to the VLAN or Token Ring
interface configuration. Use Telnet to access the router and enter the following command in VLAN
or Token Ring interface configuration mode:
Router# ip tcp adjust-mss 1452
• CSCed00381
The Cisco SDM Express wizard may not deliver the configuration to a Cisco 2691 router running
Cisco IOS images of Release 12.2(15)T or 12.2(15)ZJ when SSH is used to communicate between
Cisco SDM Express and the router. When Cisco SDM Express is invoked using the string
https://router-IP-address, it uses SSH.
Workaround: When launching Cisco SDM Express, click Cancel in the SSH credentials window.
Cisco SDM Express will use the Telnet protocol to communicate with the router. Enter the login ID
and password in the Telnet credentials window.
• CSCed25696
When launching the Dynamic Multipoint Virtual Private Network (DMVPN) Hub and Spoke
wizard, Cisco SDM may take up to 12 seconds to display the first wizard window. This latency may
occur if a JRE plug-in of any version is running in the browser, or if Cisco SDM is using the SSH
or Telnet communications module.
• CSCed08825
Cisco SDM may take several seconds to display screens in the DMVPN wizard. This latency may
occur if a Java plug-in is running in the browser.
• CSCed34587
Using an IP unnumbered interface as a DMVPN tunnel source may cause Cisco IOS to crash. An
interface configured as IP unnumbered uses the IP address of another interface on the router. This
Cisco IOS problem does not always occur.
Workaround: Instead of using an IP unnumbered interface as the DMVPN tunnel source, use the
interface that is referenced in the ip unnumbered command. If you are configuring a hub, the
interface must have a static IP address.