I am studying for my CCNA and set up a little network as follows;
routing is all correct, I can ping from laptop to my mainpc but not from mainpc back again
My main pc is running win7 (i have disabled the firewall) and even run
cmd > netsh firewall set icmpsetting 8 enable.
like i said I can ping one way but not another so I know routing is correct and have carried out traceroutes.