So you are mixing the 'just connect two LPARs' bits with the 'Access
external networks' bits here. Your adapter on the HOST partition has
'Access external network' flag set on so it's in promiscuous mode. For
ONLY connecting two LPARs together on a virtual network we want that to
Also for communication between these two LPARS there need no routes
whatever as they are in the same IP network (10.1.10.0) so just for
clarity I would remove those.