Enterasys Networks CSX7000 Manuel d'utilisateur Page 439

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Central Site Remote Access Switch 439
V
ERIFYING
R
OUTING
P
ROTOCOLS
IP Routing Operational?
3. Determine if a remote IP host can access the LAN interface of the CyberSWITCH over the WAN
connection. On the remote IP host type:
ping 100.0.0.1
<return>
If the remote IP host successfully pings to the CyberSWITCH, then continue with step 5.
4. If the remote IP host CANNOT ping to the CyberSWITCH, try the following:
a. Verify that the remote IP Host can access the WAN RLAN interface of the CyberSWITCH.
b. Verify that the LAN interface is properly initialized. Use the
ipnetif
command (a
Manage Mode command) to check for the proper LAN interface. If the proper interface
does not exist, use CFGEDIT to make the necessary corrections.
c. Verify that the remote bridge device is initiating a call to the CyberSWITCH. Since the
CyberSWITCH LAN interface has an IP address assigned with a different network number
than the one for the remote IP Host, the remote IP Host may need a proper route entry for
the local network where the CyberSWITCH is located. Make corrections to the remote IP
Host configuration.
5. Determine if a remote IP host can access the local IP host through the CyberSWITCH over the
WAN connection. On the remote IP host type:
ping 100.0.0.2
<return>
If the remote IP host successfully pings to the local IP host, then IP routing over the WAN
Remote LAN interface is operational. Repeat the above steps for each WAN Remote LAN
interface you wish to access.
6. If the remote IP host CANNOT ping to the local IP host, try the following:
a. Verify that the remote IP Host can access the LAN interface of the CyberSWITCH. If it
cannot, refer to the IP Routing Over a LAN Interface section for more information.
b. Verify that the local IP Host has the route entry for the remote network with the
CyberSWITCH as the next hop. If it does, refer to the LAN Connection section in the
Verifying Base System chapter.
If the local IP Host does NOT have the proper route entry, make corrections to the local IP
Host configuration.
IP ROUTING OVER A WAN UNNUMBERED INTERFACE
To verify that IP routing is properly operational over a WAN UnNumbered interface, the
CyberSWITCH must be operational and available to initiate connections.
Below is an example of a configuration used to verify IP routing over a WAN UnNumbered
interface. It uses IP addresses specific to the example. Substitute the IP addresses of your network
when you perform the IP routing verification steps. It also uses the “ping” command. The “ping”
command sends a packet to a specified host, waits for a response, and reports success or failure.
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