Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

Contents

USER’S GUIDE374 CyberSWITCH7. Verify that the hardware address (MAC address) for the IP Host in the CyberSWITCH’s ARPcache is correct. If it is not correct, verify the configuration in the IP Host.IP HOST M ODE OPERATION OVER THE WAN CONNECTIONProblem:The remote IP Host connected to a WAN RLAN interface on the CyberSWITCH does not receive aping response from the WAN RLAN interface.Action:1. Verify that the WAN connection is up. Use themc command to check for the connection. If theconnection is up, then continue with the next step.2. If the connection is not up, refer to Remote Device Connectivity.3. Follow the steps described in the section IP Host Mode Operation Over the LAN Connection.IP R OUTING OVER I NTERFACE C ONNECTIONSThis section provides diagnostic information for IP routing over various interface connections.IP ROUTING OVER THE LAN I NTERFACE C ONNECTIONProblem:The system does not display the correct message after the ping command. Instead, the systemdisplays the following message:No response from

Action:1. Verify that the routing entry for the destination network exists by entering the followingadministrative console command:iproute

If the command returns “No route is available for

“, the routing entrydoes not exist. To correct, add the routing entry using theiproute add Manage Modecommand.2. Check that the system and the specified Host both have the same Subnet mask and Subnetwork number for that IP address using theipnetif command (Manage Mode). Correct theHost configuration, or the system configuration (using theiproute change Manage Modecommand) as required.3. Verify that the ARP entry for the specified IP address exists. As required, ping from the IP Hostso that the ARP entry is updated. Use theip arp console command to look at the ARP cacheentries. If the ARP cache entry for the Host does not exist, verify that the Host is operationaland that the CyberSWITCH and the Host are both physically connected to the same LANsegment.4. If the ARP cache entry exists for the Host, check that the IP Host has the same encapsulationtype as the CyberSWITCH. The system can receive and recognize either Ethernet or SNAP type