virtualbox.org

I've setup a simple lab to find out why it's not working. The test lab:

It is one router with two interfaces:
LAN A)
10.2.0.0/24
VirtualBoxA: 10.2.0.1
Router Interface A: 10.2.0.254
Topology:
Router(huawei ne40) - Switch(Cisco WS-C2960S-24TS-L) - VirtualBoxA

LAN B)
10.1.0.0/24
VirtualBoxB: 10.1.0.1
Router Interface B: 10.1.0.254
Topology:
Router - Switch - VirtualBoxB

Following pings are successful:
VirtualBoxA -> Router Interface A
Router Interface A -> VirtualBox A

VirtualBoxB -> Router Interface B
Router Interface B -> VirtualBox B

Router Interface A -> Router Interface B
Router Interface B -> Router Interface A

I configured OSPF and EIGRP to test both.
But I just can't ping VirtualBox B from VirtualBox A and vis a versa.

Any idea what I might be doing wrong?

Are your guest OSs Windows? I think Windows defaults to blocking ping in the firewall.

If the answer is no to the question above, try some packets sniffing to see what is going on.