Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Attention: The Community will be in read-only mode on 12/14/2017 from 12:00 am pacific to 11:30 am.

During this time you will only be able to see content. Other interactions such as posting, replying to questions, or marking content as helpful will be disabled for few hours.

We apologize for the inconvenience while we perform important updates to the Community.

New Member

3502I Access point not registering

       We have a new setup coming where we have no DHCP available so we configured switch as DHCP and with Option 43 for WLC ip.

AP gets an ip but its loosing its ip and going back to default ip of 10.10.1.10.

Any clue why.

I have configured switch port as trunk

dhcp shows bindings but AP not retaining this ip for long enough is there an issue with completing the registration process.

ANy ideas thoughts welcome.

Everyone's tags (2)
9 REPLIES
VIP Purple

Re: 3502I Access point not registering

Hi Mathew,

Example to configure DHCP on swicth for APs

Core Switch Configuration"

----------------------------------------------------------

ip dhcp excluded-address 10.99.80.1 10.99.80.100

ip dhcp excluded-address 10.99.80.110 10.99.80.254

ip dhcp pool WirelessLAN

   network 10.99.80.0 255.255.255.0

   default-router 10.99.80.254

   option 43 ip 10.99.80.1

   option 60 ascii "VCI string"

  lease 3

interface Vlan80

ip address 10.99.80.254 255.255.255.0

For AP connection:

Interface fa0/xx

Switchport mode access

Switchport access vlan 80

Hope it helps.

Regards

Dont forget to rate helpful posts.

New Member

3502I Access point not registering

i have configured this same way. Only difference is switch port is configured as trunk as this is a Hreap AP.

VIP Purple

Re: 3502I Access point not registering

did u configured option 60 for 3503 AP.

put logs from controller to find out the exact cause.

Reagrds

New Member

3502I Access point not registering

nope i havent configured it.are you asking me to put vendor code?

VIP Purple

Re: 3502I Access point not registering

HI,

DHCP Option 43 is limited to one access point type per DHCP pool. You must configure a separate DHCP pool for each access point type.

The 3502P access point uses the type-length-value (TLV) format for DHCP Option 43. DHCP servers must be programmed to return the option based on the access point's DHCP Vendor Class Identifier (VCI) string (DHCP Option 60). The VCI string for the 3502P access point is:

Cisco AP c3502

The format of the TLV block is listed below:

•Type: 0xf1 (decimal 241)

•Length: Number of controller IP addresses * 4

•Value: List of WLC management interfaces

still not work then please Console into the AP and post the output.

Regards

New Member

3502I Access point not registering

option 60 ascii Cisco AP c3502

is this correct?

VIP Purple

Re: 3502I Access point not registering

Hi,

This is right .

Can u please post the logs from AP.

Regards

Silver

Re: 3502I Access point not registering

Hall of Fame Super Gold

3502I Access point not registering

Post the following output:

1.  WLC:  sh sysinfo;

2.  WLC:  sh time;

3.  AP:  sh version;

4.  AP:  sh inventory; and

5.  AP:  sh ip interface brief

393
Views
0
Helpful
9
Replies
CreatePlease to create content