Internal ports on Dell FX2 (FN410S)

Hi,

I have a Dell FX2 with two FN410S modules. Ports 1 to 8 are internal and ports 9 to 12 are external.

One of this module is connected to a cisco nexus and both switches can ping both vlans (10 and 20), however the server (blade 1 in the dell fx2) can't ping.

 Does anyone have an idea what could be wrong ?

Thanks in advance

Cisco config

interface port-channel10
description Connection to Dell
switchport mode trunk
switchport trunk allowed vlan 20,30

interface Ethernet1/10
switchport mode trunk
switchport trunk allowed vlan 20,30
channel-group 10 mode active
no shutdown

interface Ethernet1/11
switchport mode trunk
switchport trunk allowed vlan 20,30
channel-group 10 mode active
no shutdown

Dell config

interface TenGigabitEthernet 0/9
 no ip address
!  
 port-channel-protocol LACP 
  port-channel 10 mode active 
!
 protocol lldp 
 no shutdown
!
interface TenGigabitEthernet 0/10
 no ip address
!  
 port-channel-protocol LACP 
  port-channel 10 mode active 
!
 protocol lldp 
 no shutdown


 interface Port-channel 10
 no ip address
 portmode hybrid
 switchport
 no shutdown
!
interface Vlan 1
 ip address dhcp
!untagged TenGigabitEthernet 0/1-8
!untagged Port-channel 10
 no shutdown
!
interface Vlan 20
 no ip address
 tagged TenGigabitEthernet 0/1-8
 tagged Port-channel 10
 no shutdown
!
interface Vlan 30
 no ip address
 tagged TenGigabitEthernet 0/1-8
 tagged Port-channel 10
 no shutdown