Routing, do not see win7 win xp, what's wrong?

Question

Domain name market

That there are no normal, experienced system administrators to explain on their fingers what to reconfigure?
Wmware:
WindServ 2008:
routing, dns 192.168.1.1 hell,

as you can see on the screen, the serv sees both xpi and the seven
routing:

Piggy:
does not see the seven
Seven:

does not see the pig
Registry in both rules:
hekey loakal services tcp parmaetry dward for one
that does not So? why can't they see each other?

Answer 1

so they are in different subnets, if you put the mask 255.255.254.0 then everything will be visible

Answer 2

That there are no normal, experienced system administrators to explain on their fingers what to reconfigure?