[ubuntu] Desktop ubuntu to vbox ubuntu connectivity

Hi,

I can ping my desktop Ubuntu from my VBOX Ubuntu but cannot ping in the other way...

DESKTOP Ubuntu IP: inet 192.168.1.3 netmask 255.255.255.0 broadcast 192.168.1.255VBOX Ubuntu IP: inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0

Please help.

thanks