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KS-Soft
Joined: 03 Apr 2002 Posts: 12818 Location: USA
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JuergenF
Joined: 26 Jan 2003 Posts: 331 Location: Germany, North Rhine-Westphalia
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Posted: Sun Sep 02, 2007 2:34 am Post subject: Re: DHCP test |
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Dear Alex,
what exactly does this test do ? Seems to do a DHCP request.
But what exactly does -ClientIP do ? I always get a "DHCP NAK" from my Server (looking at wireshark) using different clientIP-addresses
And another question:
When using -cli: instead of -clientIP: there is no Error message displayed.
Does the parameter work correctly ?
(i.e -ho instead of -host is not allowed)
dhcpcheck.exe -host:192.168.68.68 -cli:192.168.68.101
ScriptRes:Host is alive:172 ms
dhcpcheck.exe -ho:192.168.68.68 -cli:192.168.68.101
ScriptRes:Unknown:DHCP Server name or IP is required
Best regards
Juergen |
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KS-Soft Europe
Joined: 16 May 2006 Posts: 2832
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Posted: Sun Sep 02, 2007 11:34 am Post subject: Re: DHCP test |
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JuergenF wrote: | what exactly does this test do ? Seems to do a DHCP request. | You are right. dhcpcheck utility verifies the DHCP server by sending DHCP request packet and waits for the response from DHCP server, whatever it replies NAK or ACK.
JuergenF wrote: | But what exactly does -ClientIP do ? I always get a "DHCP NAK" from my Server (looking at wireshark) using different clientIP-addresses | ClientIP parameter may specify the IP-address from the range, managed by DHCP server. It is not required parameter, so you have not to specify it. We have implemented such a parameter, because some DHCP servers does not respond on the packet without proper clients IP. If server replies NAK it means the server is alive as well.
JuergenF wrote: | And another question:
When using -cli: instead of -clientIP: there is no Error message displayed.
Does the parameter work correctly ? | ClientIP is not required parameter, so if you specified -cli: parameter, dhcpcheck utilty would ignore it. Unlike -ClientIP parameter, -Host: parameter is required. So, it must be specified in any case.
Regards,
Max |
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