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Is there any way to adjust DHCP client retries / timeouts on a Cisco 871W? It runs IOS, c870-advsecurityk9-mz.124-11.T1.bin to be specific. My braindead ISP only gives me an IP after the 4th or 5th DHCP REQUEST or after a certain time period has elapsed, but my 871W only issues 3 requests with a 5 sec timeout on each one before giving up for a minute. Windows and Mac both continue issuing requests with the same xid until they get a lease whereas the 871w picks a new xid after 3 failed attempts. The only timeout settings I could find seemed to be for the dhcp server. My router is acting as nothing more than a glorified switch at the moment until I can fix this. Any ideas?
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Sep 13, 2007 00:26
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| # ¿ Apr 19, 2024 21:37 |
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jwh posted:Can you hard code the ID? I think there's an option for that. There's an option for hard-coding some client identifier, although it might not be the one you need.
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Sep 13, 2007 06:19
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Anyone have any ideas on how to make the DHCP server on my 871W respond faster? I tried reducing ip dhcp ping packets and timeout to really low values. Whenever I plug in a network cable, Windows sits at Acquiring IP address for so long it actually times out and assigns an automatic private IP, then the DHCP IP is assigned about 5 second later. I'm guessing the DHCP server is waiting for an authoritative DHCP server to respond first, is there any way I can tell it that it's the authoritative server?
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Jul 22, 2010 00:27
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I'm assuming portfast was off by default, I turned it on which should hopefully fix it given the description of how it operates. Figures I was looking in completely the wrong place, I had no idea this was even happening  . Thanks.
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Jul 22, 2010 02:43
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