Cannot ping IP on different subnet

[uppermost]

Can anyone explain to me, why I cant ping VLAN412 from HostA ?

SwitchA#show run
Building configuration...

interface Ethernet0/0
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface Ethernet3/3
 switchport access vlan 400
 switchport mode access
 switchport port-security maximum 2
 macro description cisco-phone
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface Vlan1
 no ip address
!
interface Vlan400
 description LegacyData
 ip address 10.10.1.100 255.255.0.0
 ip pim dense-mode

interface Vlan911
 description MGMT.Network
 ip address 10.12.254.254 255.255.255.0
 ip pim dense-mode
!
!
router eigrp 200
 network 10.10.0.0 0.0.255.255
 network 10.12.0.0 0.0.255.255
 passive-interface default
 no passive-interface Vlan911
!
SwitchA#

SwitchB#show run
Building configuration...
!
interface Ethernet0/0
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface Ethernet3/3
 switchport access vlan 400
 switchport mode access
 switchport port-security maximum 2
 macro description cisco-phone
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface Vlan412
 description Data_RRU31
 ip address 10.12.171.1 255.255.255.0
!
interface Vlan911
 description MGMT.Network
 ip address 10.12.254.250 255.255.255.0
 ip pim dense-mode
 ip summary-address eigrp 200 10.12.0.0 255.255.0.0
!
!
router eigrp 200
 network 10.12.0.0 0.0.255.255
 passive-interface default
 no passive-interface Vlan911
 eigrp stub connected summary
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 10.12.254.254 50
!

SwitchB#

From HostA

[MHM Cisco World]

In SW-b

Show vlan do you see the vlan ? 

If not you need to add it by 

Vlan x 

[uppermost]

[MHM Cisco World]

sorry you already  have EIGRP between two SW no need static route 

[uppermost]

Still no ping

[MHM Cisco World]

eigrp stub connected summary

remove this and check 

[uppermost]

did not help

[MHM Cisco World]

Do traceroute see where traffic stop in SW a or SW b 

Share here 

[MHM Cisco World]

I review the show vlan you share 
VLAN911 is not appear in SW-B ?? 
if it not appear 
add vlan via 
vlan 911 

and check 

[uppermost]

All the L2 vlans are there, I just did not post whole cfg.

[MHM Cisco World]

In SW-B trace 10.10.1.174 

show ip int brief <<- in both SW 

[uppermost]

[MHM Cisco World]

show ip int brief <<- in both SW 

If all svi of all vlan up'

Last resort is 

Instead of transit vlan911' use router port between two switch.

Router port conifg by 

Interface x/x

No switchport 

Ip add <  use same subnet of vlan911>

Keep other config as it 

And check ping.

[MHM Cisco World]

Did you check show ip inter brief?

Did you try use router port ?

[Flavio Miranda]

Hi

 show ip route on Switch A , are you receiving 10.12.171.0 network ?