topic Re: WLC lost wireless networks in Wireless

WLC lost wireless networks

rlaudicina — Sun, 04 Jul 2021 04:01:34 GMT

I have 2 4402 WLC's and a central office and was trying to configure an H-Reap Ap but now the entire wireless network is down. Clients arent getting IP's. I cant see anything that is wrong but things are not working like they should. Please help.

WLC lost wireless networks

George Stefanick — Wed, 02 Nov 2011 14:28:14 GMT

Robert,

Can you share how you are deisgn is today? How many aps and were they HREAP already ? Did they fail when you when to HREAP .. ?

WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 14:29:00 GMT

Ok so I found that If I turned off H-Reap on the AP's and then on the WLANS the wireless is working again. I'm not sure why this is since the ap's are supposed to be hreap compatible.

WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 14:33:58 GMT

Yes, I have a central office with 2 4402 WLC's. And 25 remote offices with 1-3 1142ap's. I just upgraded one of my 1141 AP's to a 3502 and enablde H-Reap in it. After some reading I learned that the WLAN's and AP's should all be configured for H_Reap instead of local but this is what broke the network. I could see the wireless but not get an IP address.

What I am trying to accomplish eventually is to use local DHCP server as the remote offices so that each client is assigned an IP off the local subnet instead of one big subnet here at corporate. It looks like H-Reap is the way to do this but I am having trouble figuring out how to configure it. Any advice would be appreciated.

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 14:45:45 GMT

That is weird. You should be able just to change the mode to h-reap with no issues at all. What I'm thinking is you might of had enabled h-reap local switching and then enabled h-reap. If that is what you did, you need to go into the AP and then click on the H-REAP tab on the AP. You need to configure the switch port to a trunk and allow only the ap managent vlan and any other vlans that you want for wireless. Then in the H-REAP tab on the AP, enable vlan support and set you management vlan and hit apply. I back into the H-REAP tab on the AP and click vlan mapping. Here you will define what ssid you want to map to what vlan. You will only be able to do this if you have H-REAP local switching enabled on the WLAN SSID in the advanced tab.

Hope this helps.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 14:57:44 GMT

yes I had H-Reap local Switching configured but had to turn this off to get the system working again. I thought that I could implement H-Reap without having to use vlan tagging and was hoping to just get the AP's into H-Reap mode and then do the VLan stuff later but I keep running into problems.

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:01:14 GMT

You should have any issues. If you don't have h-reap local switching on any of your wlan's then you should be able to switch from local to h-reap with no issues. I do that all the time.

Test with an AP local to the WLC.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:03:17 GMT

I actually did have local switching turned on but it is now off, Dont I want local switching and Auth?

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:06:14 GMT

Do things one at a time.

Enable local switching on the WLAN should not break your current setup especially if your AP's are in local mode. It the same if you don't have local switching enabled and you switch from local to h-reap.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:21:27 GMT

OK so I changed all AP's to Local and enabled Local switching but NOT local Auth on the Wlans and everything appears to still be up.

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:23:46 GMT

What do you mean by local auth on the WLAN?

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Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:25:44 GMT

So what you need to do now is setup your switchport to a dot1.q trunk and setting the native vlan on the trunk to the vlan the ap management ip is on. Let me know when you have done that and if everything is still okay.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:25:49 GMT

Under the Advanced tab on the WLan configuration there are two check boxes H-Reap Local switching

and H-Reap Local Auth. This is where I enabled Local Switching but not Local Auth. Is this incorrect?

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:27:44 GMT

You only need local switching.

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Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:30:44 GMT

Don't enable local auth. Just local switching and learn client ip address.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:34:52 GMT

Ok so I am good so far then no local Auth, But I dont see anything saying learn ip address. I am working on how to get tinto the 6500 catalyst to configure the port. This is the port that the WLC plugs into I assume?

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:37:14 GMT

Okay... Don't worry about that. Depends on the code.

You need to configure the port the access point is connected to not the WLC.

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WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:41:53 GMT

Sorry I am confused here,Do I then have to configure ALL switch ports that are connected to AP's ? BTW its a 4510R not a 6500. I thought I needed to configure the ports that the WLC's connect to on the Core switch.

WLC lost wireless networks

rlaudicina — Wed, 02 Nov 2011 15:43:25 GMT

So if i am understanding correctly, in order to enable H-Reap company wide I will have to configure each switch port that conects to an AP for dot1q?

Re: WLC lost wireless networks

Scott Fella — Wed, 02 Nov 2011 15:47:44 GMT

If you plan on putting users on a different vlan at the remote (h-reap) sites, then you need to change the switchport the AP's are connected to. In h-reap you are no longer tunneling traffic if you setup local switching on the WLAN. It will be like an autonomous AP per say. Traffic gets dumped out to the switch the ap is connected to.

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