Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

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USER’S GUIDE362 CyberSWITCHShortly after a DHCP Client is powered on, it will attempt to get its IP address from a DHCP Server.If it is successful, its IP-related features (e.g., ping, telnet, etc.) will become operational. If the clientcould not obtain its IP address, it will retry periodically to do so.From the DHCP Client, attempt to ping the Relay Agent (“Ruby”) that is on the same LAN:C:\> ping 204.157.42.168 Pinging 204.157.42.168 with 32 bytes of data:Reply from 204.157.42.168: bytes=32 time=2ms TTL=64Reply from 204.157.42.168: bytes=32 time=2ms TTL=64Reply from 204.157.42.168: bytes=32 time=1ms TTL=64Reply from 204.157.42.168: bytes=32 time=2ms TTL=64A response of this form indicates that the IP-related features of this client are enabled. Therefore, ithas successfully obtained an IP address from the DHCP Server. If the ping attempt resulted insomething like the following, the client was not able to obtain its IP address from the DHCP Server:C:\> ping 204.157.42.168Pinging 204.157.42.168 with 32 bytes of data:Destination host unreachable.Destination host unreachable.Destination host unreachable.Destination host unreachable.If this is the case, refer to Relay Agent Operation in the Problem Diagnosis chapter.V ERIFYING DHCP: P ROXY C LIENTThe following sections provide instructions to verify that the DHCP Proxy Client is workingproperly.VERIFYING DHCP P ROXY CLIENT I NITIALIZATIONRegardless of whether or not the Proxy Client has been enabled via configuration, someinitialization processing is always performed. If this initialization is successful, there should not beany warnings/errors written to the report log by the DHCP Proxy Client.1. Examine the report log. Type:dr 2. Thedr command displays the system report log. Look for any messages that begin with:[DHCP-P]3. The following message indicate that errors occurred during DHCP Proxy Client initializationprocessing:[DHCP-P] Proxy Client initialization failed