12-16-2004 07:36 AM - edited 07-04-2021 10:16 AM
I am trying to set MAC filtering on an 1100 AP but it locks me out by not providing me the correct DHCP addr.
12-17-2004 03:46 PM
Can you post the configuration please? What IOS software version do you use?
12-20-2004 08:24 AM
Here is the IOS.
System Software Filename: c1100-k9w7-tar.wnbu.20040209
System Software Version: 12.2(20040209:092053)
Bootloader Version: 12.2(4)JA
I am including the config as config.txt.
Note: I am only setting up MAC filtering. Broadcast is off.
I have tried with Broadcast on and off, same issue. I have also tried different MAC MASK as the documentation is different.
Basically, I cannot get a good DHCP address when I turn on MAC filtering.
The 1100 is connected to a Linksys Cable/DSL Router BEFSR41. It is giving out DHCP addr OK to the wired devices and to the AP.
12-20-2004 12:40 PM
I look at the configuration. There is no access list defined. Where is the access list configured? Can you define the access list and not apply to any interface?
12-21-2004 07:16 AM
Sorry about the wrong config. Here is the correct one I was using. Very simple filter. The main issue is the documentation and info online indicates I should use a different MAC MASK. For the mask I tried different combinations. fff.fff.fff, 0.0.0, f.f.f, fff.fff.000 and 0.0.f. None of these worked
12-23-2004 02:24 PM
What is the MAC address in the access list? Do you configure a DHCP relay agent between the AP and the DHCP server?
I assume that the MAC address in the access list is the MAC address of the fast ethernet interface of the AP. If this is the case, I have a couple of concerns:
1. You need to configure the access list to allow broadcast traffic. If you do not use a DHCP relay agent, the DHCP offer frame from the DHCP server to the AP is a layer 2 and 3 broadcast. The existing access list blocks the DHCP offer. Please add "access-list 700 permiet ffff.ffff.ffff 0000.0000.0000". Please go to the following URL for an example:
2. You need to add wireless clients' MAC in the access list. Otherwise, the AP cannot pick up any traffic to the wireless clinets from the fastethernet. interface
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