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Frequent Contributor I

automatic registration with controller

Hello.

I've got a new 7210 controller and several AP-175P access points. All devices share the same L2 segment with DHCP on the controller. I thought access point would automatically connect and register with controller without any configuration on them but they are not even getting IP address. Is it possible that access point will automatically connect to controller? Is there something that must be set on them to make it work?

Guru Elite

Re: automatic registration with controller

Is the interface(s) and/or VLAN that connects to the APs trusted on the controller?

 

show port status

 

Port Status
-----------
Slot-Port  PortType  adminstate  operstate  poe      Trusted  PortMode
---------  --------  ----------  ---------  ---      -------  --------
1/0        GE        Enabled     Down        Enabled  Yes      Access
1/1        GE        Enabled     Down        Enabled  Yes      Access
1/2        GE        Enabled     Up           Enabled  Yes      Trunk
1/3        GE        Enabled     Up           Enabled  Yes      Trunk

 


Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Guru Elite

Re: automatic registration with controller

What is providing DHCP on those ports?

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Re: automatic registration with controller

 

- Make sure DHCP service has been enabled : "show service dhcp" 

 

- Verify the information in the DHCP pool : show ip dhcp database , what's the IP default-router ? and make sure it matches the ip address assigned to the VLAN associated with it

 

 

 

 

 

 

 

Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Frequent Contributor I

Re: automatic registration with controller

Thanks for replies.

Uplink ports are part of LAG. It is trusted.

# show port stat

Port Status
-----------
Slot-Port  PortType  adminstate  operstate  poe      Trusted  SpanningTree  PortMode
---------  --------  ----------  ---------  ---      -------  ------------  --------
0/0/0      GE        Enabled     Down       Enabled  Yes      Disabled      Access
0/0/1      GE        Enabled     Down       Enabled  Yes      Disabled      Access
0/0/2      GE        Enabled     Up         Enabled  Yes      Disabled      Access
0/0/3      GE        Enabled     Up         Enabled  Yes      Disabled      Access
0/0/4      GE        Enabled     Down       Enabled  Yes      Disabled      Access
0/0/5      GE        Enabled     Down       Enabled  Yes      Disabled      Access

interface gigabitethernet 0/0/2
        description "GE0/0/2"
        trusted
        trusted vlan 1-4094
        lacp group 0 mode active
!

interface gigabitethernet 0/0/3
        description "GE0/0/3"
        trusted
        trusted vlan 1-4094
        lacp group 0 mode active
!

interface port-channel 0
        trusted
        trusted vlan 1-4094
        switchport mode trunk
        switchport trunk native vlan 181
        spanning-tree portfast
        spanning-tree cost 2000
!

 DHCP is provided by controller and it is enabled.

 

# show service dhcp
service dhcp "default" undefined.

#show ip dhcp database
DHCP enabled

# Global scope option declarations
option usr-opt-60-WIFI code 60 = text ;
option usr-opt-43-WIFI code 43 = ip-address ;

# WIFI
subnet 10.10.11.0 netmask 255.255.255.0 {
        default-lease-time 86400;
        max-lease-time 86400;
        option vendor-class-identifier  "ArubaAP";
        option vendor-encapsulated-options  "10.10.11.1"
        option domain-name-servers 8.8.8.8, 8.8.4.4;
        option routers 10.10.11.254;
        option usr-opt-60-WIFI "ArubaAP";
        option usr-opt-43-WIFI 10.10.11.1;
        range 10.10.11.100 10.10.11.253;
        authoritative;
}


ip dhcp excluded-address 10.10.11.1 10.10.11.99
ip dhcp pool WIFI
 default-router 10.10.11.254
 dns-server 8.8.8.8 8.8.4.4
 lease 1 0 0 0
 option 60 text "ArubaAP"
 option 43 ip 10.10.11.1
 network 10.10.11.0 255.255.255.0
 authoritative
!
service dhcp

 sefault-router is IP of router in that VLAN (not the controller).

Should access point by defult get IP address and connect to controller?

Guru Elite

Re: automatic registration with controller

Type "show controller-ip".  That will tell you what ip address the access point is redirected to upon controller discovery.  You need to make sure that the controller-ip is reachable from the 10.10.11.x network.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor I

Re: automatic registration with controller

#show controller-ip

Switch IP Address: 10.10.11.1

Switch IP is from Vlan Interface: 11

Switch IPv6 address is not configured.

 Of course controller-ip is reachable because it is the same VLAN.

Guru Elite

Re: automatic registration with controller

Type "show ip dhcp binding" to see if the AP actually gets an ip address.  If it does, try to ping it...  If you can ping it, type "show datapath session table <ip address of ap>" repeatedly to see if it is sending traffic to the controller.  If it is sending traffic, type "show ap database" to see if the access point has registered with the controller.  The AP175P has external antennas, so it will not come up unless you put in a gain for both antennas, after it has contacted the controller.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor I

Re: automatic registration with controller

There are no bindings on the controller so I cannot test any access point. Access points have antennas installed. It looks like access points don't even try to get IP address. The link is up but no traffic going from them.

Guru Elite

Re: automatic registration with controller

Plug into the link with a laptop and see if you get an ip address.  If you get an ip address, see if you can ping the controller on that 10.x address.  Are you sure the uplink to the controller is trusted?

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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