AP goes offline after dhcp change on customer site. Can`t reconnect to scg public ip

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Pitt

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Posted 1 year ago

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Pitt

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Hi,

we have a vscg controller for our customers. We need to change the dhcp server on one customer site. We added option 42 for ntp server. After that, the APs on the site go offline.
After factory reset of the AP i signed in and set scg ip "public IP of our controller" and reboot this guy. But it didn`t appear in our controller.
On vscg the NAT IP is set and ports are forwared to vscg.

Actually it looks like this:
rkscli: get scg

------ SCG Information ------
SCG Service is enabled.
AP is not managed by SCG.
State: DISCONNECTED
Server List: -public ip of vscg-
No SSH tunnel exists
Failover List: Not found
Failover Max Retry: 2
DHCP Opt43 Code: 6
Server List from DHCP (Opt43/Opt52): Not found
SCG default URL: RuckusController
SCG config|heartbeat intervals: 300|30
SCG gwloss|serverloss timeouts: 1800|7200
-----------------------------
OK


I`m looking forward hearing from you guys.

Kind Regards
Christoph
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Jeronimo

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You have to configure NAT-IP on SZ if SZ is locate behind NAT.

And you have to configure option 43 properly.

For option43, refer to https://shimi.net/services/opt43/.
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Pitt

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Hi Jeronimo,

Control NAT IP is configured. It works fine for other customers.

Why do i need option 43 if other Access Points, on other locations can connect to my controller without option 43?
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Jeronimo

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You do not have to do option 43.

Do you deploy vsz-h or vsz-e?
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Pitt

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Ok. We use vsz-h with multiple customers connecting to it.
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Jeronimo

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If you have vsz-h, confirm two point.

First, 
show run lwapp2scg    
LWAPP2SCG Configuration   
   --------------------------------------------------   
   ACL Policy                              : Accept all   --------------> Have to Accept All.
   Dynamic Data Transmission Port Range    : Not specified   
   NAT IP Translation in FTP Passive Mode  : Yes   
   ACL APs

Second, check whether the AP is located on staging-zone.
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Pitt

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show run lwapp2scg shows "Deny all" on the controller.
I changed to "Accept all" and reconfigured the AP. But it still does not appear in Staging Zone.
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Jeronimo

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What is version of standalone AP, vSZ and model of AP?
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Pitt

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AP is R310 with version is 5.0.0.0.753
vsz version is 5.0.0.0.675
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Jeronimo

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If version of AP is 5.0.0.753, that was associated to SZ.
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Pitt

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Thats true. The AP was connected to SZ. But after changing the dhcp settings in the customer network, the AP goes offline. Now i can`t connect the AP back to controller.
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Jeronimo

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How do he change dhcp setting?

If after changing dhcp setting, check their network setting(routing or nat or FW policy  setting.)

If you don't find cause, capture network dump using mirroring.

You may find where is not communicate Ap with SZ.
(Edited)
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Pitt

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Change dhcp server and add ntp server as option 42.

There are no changes in routing, nat or fw. But i will check it.

Thanks for your fast replies.