topic Re: AP goes offline after dhcp change on customer site. Can`t reconnect to scg public ip in Access Points - Indoor and Outdoor

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

christoph_pittn — Mon, 01 Oct 2018 09:55:04 GMT

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

christoph_pittn — Mon, 01 Oct 2018 11:22:05 GMT

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

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

hyosang_choi — Tue, 02 Oct 2018 05:15:23 GMT

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/.

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

christoph_pittn — Tue, 02 Oct 2018 08:21:53 GMT

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?

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

hyosang_choi — Tue, 02 Oct 2018 08:41:11 GMT

You do not have to do option 43.

Do you deploy vsz-h or vsz-e?

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

christoph_pittn — Tue, 02 Oct 2018 08:42:17 GMT

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

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

hyosang_choi — Tue, 02 Oct 2018 08:51:42 GMT

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.

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

christoph_pittn — Tue, 02 Oct 2018 09:19:15 GMT

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.

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

hyosang_choi — Thu, 04 Oct 2018 00:39:50 GMT

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

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

christoph_pittn — Thu, 04 Oct 2018 06:17:18 GMT

AP is R310 with version is 5.0.0.0.753
vsz version is 5.0.0.0.675

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

hyosang_choi — Thu, 04 Oct 2018 06:31:05 GMT

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

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

christoph_pittn — Thu, 04 Oct 2018 06:35:48 GMT

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.

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

hyosang_choi — Thu, 04 Oct 2018 06:43:41 GMT

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.

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

christoph_pittn — Thu, 04 Oct 2018 06:48:37 GMT

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.