Client IP address receiving issue with Cisco 3560

[Alexandr_P]

Hello!

WiNG 5.9

VX9000 + AP7632.

1 AP connected to EXOS switch, 2 AP connected to Cisco 3560.

AP with EXOS - all fine.

When both AP’s connected to EXOS switch - all fine.

With AP connected to Cisco 3560 client connect to AP, AP normally put client to VLAN

client:RoleInfo: 00-13-E8-XX-XX-XX idx: 10001, client_idx: 1, vlan_id: 241, role_name: #system-default# (extif.c:

But client can’t normally receive IP. Long time receiving and then 169.254.174.207.

Cisco 3560 has simple config 

(IOS 12.2(55)SE12)

!

interface FastEthernet0/3

description "Uplink to AP-2-Extreme"

switchport access vlan 222

switchport trunk encapsulation dot1q

switchport trunk native vlan 222

switchport trunk allowed vlan 241,270

switchport mode dynamic desirable

no cdp enable

end

Does somebody has such issue?

Any ideas?

Thank you!

[Ronald_Dvorak · Accepted solution]

I’m pretty sure that you don’t need “switchport mode access” as that is only necessary for an access port.

It should look like this…..

interface GigabitEthernet1/0/3
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 222
 switchport trunk allowed vlan 241,270
 switchport mode trunk
 no cdp enable

-Ron

[Alexandr_P]

Hi, Ronald!

“switchport mode trunk” - change situation, clients connecting fine.

But now Controller and other AP can’t see this AP.

Because:

• network equipment has vlan 222 for AP management
• from APs and Controller’s side it’s native vlan 1 (I wasn’t change number of vlan, because this is access vlan and switch don’t have to check vlan tag)

So, now question - why 3560, with “switchport mode trunk” don’t know that vlan 222 is access?

!
interface FastEthernet0/3
 description "Uplink to AP-2-Extreme"
 switchport access vlan 222
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 222
 switchport trunk allowed vlan 241,270
 switchport mode trunk
 no cdp enable
end

Thank you!

[Ronald_Dvorak]

Hi Alexandr,

could you try it with “switchport mode trunk” instead of “switchport mode dynamic”

also check whether you learn the MAC of the client in the correct port/VLAN “show mac address-table interface fa0/3”

-Ron