Hello all, i have a problem with routing on my network, my network scheme is below:

 

  router(192.168.1.1)    ----->    Dell6224(192.168.1.2)  vlan2(192.168.2.1) ---> dell 3448(192.168.2.2)---> pc

                                                                                                 vlan3(192.168.3.1)----> dell3448(192.168.3.2) --->pc

                                                                                                 vlan4(192.168.4.1)----> dell3448(192.168.4.2)---->pc

routing through default gw working fine, pinging pc on diferent vlans working fine too, but when i am logged for example on 192.168.4.2 and want pinging dell switch with IP 192.168.2.2, it doesn't work, only when first ping 192.168.2.2 from backbone switch dell 6224 than it start pinging from 192.168.4.2, it looks like problem with routing or between dell switches configuration, i am completely lost :(. So, everything except pinging switches between them not working. I attach my config below.

!Current Configuration:
!System Description "Powerconnect 6224F, 3.2.0.9, VxWorks 6.5"
!System Software Version 3.2.0.9
!Cut-through mode is configured as disabled
!
configure
vlan database
vlan 2-9
vlan routing 2 1
vlan routing 3 2
vlan routing 4 3
vlan routing 5 4
vlan routing 6 5
vlan routing 7 6
vlan routing 8 7
vlan routing 9 8
exit
stack
member 1 3
exit
ip address dhcp

                    
ip routing
ip route 0.0.0.0 0.0.0.0 192.168.1.1
arp timeout 21600
ip helper-address 192.168.1.1 domain
ip helper-address 192.168.1.1 dhcp
router rip
no enable
no hostroutesaccept
exit
interface vlan 2
name "block_A"
routing
ip address 192.168.2.1 255.255.255.0
ip igmp
ip pimdm
ip pimsm
exit
interface vlan 3
name "block_B"
routing
                  
ip address 192.168.3.1 255.255.255.0
ip igmp
ip pimdm
ip pimsm
exit
interface vlan 4
name "block_C"
routing
ip address 192.168.4.1 255.255.255.0
ip igmp
ip pimdm
ip pimsm
exit
interface vlan 5
name "gw"
routing
ip address 192.168.1.2 255.255.255.0
ip igmp
ip pimdm
ip pimsm
exit

              
        

no spanning-tree
ip multicast
ip igmp
ip pimsm
ip pimsm rp-address 194.7.3.3 224.0.0.0 240.0.0.0
dhcp l2relay vlan 2-9
!

interface ethernet 1/g2
dhcp l2relay
switchport access vlan 2
exit
!

                    
interface ethernet 1/g3
dhcp l2relay
switchport access vlan 3
exit
!
interface ethernet 1/g4
dhcp l2relay
switchport access vlan 3
exit
!
interface ethernet 1/g5
dhcp l2relay
switchport access vlan 3
exit
!

interface ethernet 1/g8
dhcp l2relay
switchport access vlan 4
exit
!
interface ethernet 1/g9
dhcp l2relay
switchport access vlan 5
exit
!
interface ethernet 1/g10
dhcp l2relay
switchport access vlan 5
exit
!
                 
                
exit
!
interface ethernet 1/g24
dhcp l2relay
switchport access vlan 2
exit
exit

console#

here is 3448 config:

 

console# show running-config
no spanning-tree
bridge multicast filtering
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
ip igmp snooping
interface vlan 1
ip igmp snooping
exit
interface vlan 1
ip igmp snooping querier enable
exit
interface vlan 1
ip address 192.168.2.2 255.255.255.0
exit
ip default-gateway 192.168.2.1
logging console debugging
logging buffered debugging                 
logging file debugging                     
clock source sntp
sntp broadcast client enable
sntp server 81.93.183.116
sntp server 92.240.244.202 poll


Default settings:
Service tag: 
 
SW version 
 
Fast Ethernet Ports
==========================
no shutdown
speed 100
duplex full
negotiation                                
flow-control off
mdix auto
no back-pressure
 
Gigabit Ethernet Ports
=============================
no shutdown
speed 1000
duplex full
negotiation
flow-control off
mdix auto
no back-pressure
 
interface vlan 1
interface port-channel 1 - 15
 
spanning-tree
spanning-tree mode STP
 
qos basic
qos trust cos

Routing table:

 

console#show ip route

Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, S - Static
       B - BGP Derived, IA - OSPF Inter Area
       E1 - OSPF External Type 1, E2 - OSPF External Type 2
       N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2

S      0.0.0.0/0 [1/0] via 192.168.1.1,   vlan 5
C      192.168.2.0.0/24 [0/1] directly connected,   vlan 2
C      192.168.3.0/24 [0/1] directly connected,   vlan 3
C      192.168.4.0/24 [0/1] directly connected,   vlan 4