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I am having difficulty acquiring an IP address when running off my Ubuntu partition and attempting to connect to the Cisco Linksys E4200 wireless router via wireless which is using DHCP reservation for assigning "static" IP addresses based on the adapter's MAC address . DHCP reservation is a feature on the E4200 and E3200 routers that sets certain IP addresses in the pool of DHCP IP address range based on the MAC address of the adapter. The IP address assigned is in essence "fixed" even within the DHCP range.

I am not having problems with this when I boot from the Windows partition.

Also, when I disable DHCP reservation and get an IP address, the conventional way on the Ubuntu partition, I don't have any problems. With DHCP reservation set on the router and when running Ubuntu, I can never get an IP address connecting via wireless. I can however get an IP address when I connect via LAN.

I just wonder if I am the only one who has tried this or anyone else faced the same problem because I believe everything is set up properly. perhaps this is an oversight and has not been tested.

Thank you.

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closed as too localized by Eric Carvalho, Kevin Bowen, Eliah Kagan, Seth, vasa1 Apr 3 '13 at 6:54

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Debug output is going to be essential to troubleshooting this one. Please run dhclient when you've connected to the wireless network (but not obtained an IP address), and add the output to your question. Also, it'd be useful to know if fixed DHCP assignments work over a wired connection. – cqcallaw Feb 11 '12 at 18:50
This question appears to be abandoned and unanswered, if you are experiencing a similar issue please ask a new question with details pertaining to your problem. If you feel this question is not abandoned, please flag the question explaining that. – Eliah Kagan Apr 3 '13 at 1:09

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