Verifying Configuration
Returning to the Configuration | Interfaces screen, as shown
in Figure
14-15, confirms the default gateway was defined and provides a reminder icon
to save the configuration. This same screen confirms the interface
configurations and whether the two interfaces are up or down. If either
interface is down, this could be caused by any of the following:
-
You might need to click the Refresh icon.
-
You might have used the wrong cable. Use straight through to
the hub or the switch; otherwise, use a crossover.
-
The device on the other end might be misconfigured or
unconfigured.
At this point, you should be able to use the Administration |
Ping screen to ping other devices on the network to verify connectivity. As with
the IOS Routers and PIX Firewalls, a good idea is always to verify connectivity
before configuring encryption and access control measures. While pinging the
Concentrator public interface is possible, it won’t be possible to ping through
to the LAN or the private interface. Also, opening Telnet or browser sessions
with the Concentrator from the outside network won’t be possible.
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