client not getting ip

[dave dave]

Hi, I've the following connection in my environment, and I'm using the fw as a dhcp svr. All these equipments are in the same network segment of 10.5.5.x/24. The laptop doesn't seems to get any ip from the fw, is there any port that need to be open for the ip to be assigned out, passing thru from the sw>wlc>ap back to the laptop? Thx

Laptop>ap>wlc>sw>

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[Stephen Rodriguez]

Check to see if dhcp proxy is enabled. Most FW type devices don't like the proxy the WLC does.

CLI

Show dhcp proxy

Config dhcp proxy to disable ( if it's enabled $

Can be checked from the GUI as well under Controller > DHCP

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[dave dave]

Hi! It's enabled, will it impact other segment? Other segments r working fine getting the ip fr the windows dhcp svr. Only this segment that I'm having issue now is using the fw as dhcp. Currently this segment are used by the autonomous ap. I face the issue when I tried to get the client to connect to the converted ap (lightweight) in this segment (guest network). It's working fine for autonomous ap bcoz it's not going thru wlc. Any advise? Thx

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[Stephen Rodriguez]

You'll need to disable proxy to get Dhcp from the FW. make sure you add the ip helper-address to hour L3 interfaces, when you disable proxy

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[dave dave]

Hi currently all the working segments r already configured with helper address. For this guest segment it's on vrf, the dhcp is ddirectly fr fw, thus no L3 interface. Are u referring to the guest segment or the working segment? Thx

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[Stephen Rodriguez]

make sure you add the ip helper-address to hour L3 interfaces  - was for the 'internal WLAN'

so all you should need to do is disable proxy, so the guest can get an address.

HTH,

Steve

[dennischolmes]

Stephen is correct here. Disabling dhcp by proxy will not adversely affect your other networks.