DHCP snooping miltiple switches AP authonomous

[rparrat666]

Hi,

I have a problema with DHCP. I have two 2960 connected with a port channel on ports 47 and 48 as trunk with native vlan 10. I only have this one vlan. In port 1 of sw 1, I have a C800 as DHCP server.

I have an AP autonomous witrh single ssid on vlan 10.

When I connect the AP to sw1, I receive dhcp with no problems.

When I connect the AP to sw 2, I’m not getting IP by DHCP.

I have DHCP snooping working on vlan 10 on both devices.

The ports where I connect the AP are access ports on vlan 10 config as trusted.

The trunk ports are also configured as trusted.

The port 1 of ws 1 that goes to the C800 is also configured as trusted.

I need some help to figure out why I’m not getting IP by DHCP when I connect the AP to the SW 2.

The only I notice is that when I connect the AP to sw 2, I get on SW 1 the message of packet drop by option 82, but even after configuring ip dhcp snooping information option allow-untrusted on both switches, the problem persists.

thanks

[paul driver]

Hello
Do you have connecrivity from this port?

Can you receive an ip address from dhcp if you plug a pc into it? - Have you tried static addressing ?

On switch 2 have you defined L2 vlan for vlan 10?

res
Paul

Sent from Cisco Technical Support Android App

[rparrat666]

Vlan 10 is configured as access on all ports, and is passing tru the tunk port.

If I’m connected tp the sw 2 with a wired, I get IP by DHCP without any problem and have full connectivity.

If I configure a static ip address on my wireless interface, I have full connectivity tru the SSID.

Thanks

[paul driver]

Hello

Can you post the config of the wlan ap

res

Paul

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Thanks.

[rparrat666]

!

! Last configuration change at 18:10:56 GMT Sun Feb 28 1993 by admin

version 15.2

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname AP

!

!

logging rate-limit console 9

!

aaa new-model

!

!

aaa authentication login default local

aaa authorization exec default local

!

!

!

!

!

aaa session-id common

clock timezone GMT -6 0

ip cef

!

!

!

ip dhcp-server 10.69.32.1

dot11 syslog

!

dot11 ssid xtndsyses

authentication open

authentication key-management wpa

guest-mode

wpa-psk ascii 7 03227D2D202A04696B2D3D213330292E260B0A05096365

!

!

dot11 network-map

crypto pki token default removal timeout 0

!

!

username --- privilege 15 secret 5

username --- privilege 15 secret 5

!

!

bridge irb

!

!

!

interface Dot11Radio0

no ip address

!

encryption mode ciphers tkip

!

ssid xtndsyses

!

antenna gain 0

stbc

station-role root

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 spanning-disabled

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

!

interface Dot11Radio1

no ip address

!

encryption mode ciphers tkip

!

ssid ssidap

!

antenna gain 0

dfs band 3 block

stbc

channel dfs

station-role root

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 spanning-disabled

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

!

interface GigabitEthernet0

no ip address

duplex auto

speed auto

bridge-group 1

bridge-group 1 spanning-disabled

no bridge-group 1 source-learning

!

interface BVI1

ip address 10.69.32.7 255.255.255.0

ip helper-address 10.69.32.1

!

ip default-gateway 10.69.32.1

ip forward-protocol nd

ip http server

ip http authentication aaa

no ip http secure-server

ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag

ip route 0.0.0.0 0.0.0.0 10.69.32.1

!

snmp-server community ro RO

snmp-server community rw RW

!

bridge 1 route ip

!

!

!

line con 0

line vty 0 4

transport input all

!

end

[paul driver]

Hello,

Are you trying to obtain dhcp for clients connecting to this AP or for the AP to obtain a dynamic ip address?

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Thanks.