Or does anyone know how to get the two routers to share the dhcp
DB/binding tables?
Jorge Bodden wrote:
Hey guys,
I ran into a little problem over the weekend while I was attempting to
make our wireless network redundant.
We run a WPA/TKIP encryption with EAP-TTLS/PAP authentication
environment. We have a total of 10 Cisco lwapp controllers which are
connected to 1 Cisco 6500 (fiber is lit) and another 6500 with the
fiber not lit.
Because we log the users who authenticate and record what IP address
they use on the system, we have the router assign the addresses to
these users. When I lit the fiber up and added the 'ap-manager'X
interfaces, slowly but surely more and more users started to
disconnect from the network.
When I look at the Radius logs, I did not see an unusual amount of
authentication rejections. When I look at the lit 6500's logs, I do
not see an unusual amount of DHCP requests being rejected. When I
look at the logs of the unlit 6500 for the time that it was lit, there
is nothing unusual there.
Although I am going to lab the dual DHCP server running on the routers
in the same environment, it seems as thought the two routers do not
communicate the DHCP binding tables with one another. Has anyone out
there deployed a similar environment?
I know that I have the option of running the DHCP server on my regular
DHCP server or I can also run it on Radius. Either of these would
mean a change in the infrastructure. But it would make it a little
more redundant. Thanks.
Jorge Bodden
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