以下を全て試したがNG
・PC[A]
route -p add 192.168.2.3 mask 255.255.255.255 192.168.2.3 metric 1 if X
route -p add 192.168.2.0 mask 255.255.255.0 192.168.2.3 metric 1 if X
route -p add 192.168.2.3 mask 255.255.255.0 192.168.2.3 metric 1 if X
【↑↓繋ぎたい】
・PC[B]
route -p add 192.168.2.2 mask 255.255.255.255 192.168.2.2 metric 1 if X
route -p add 192.168.2.0 mask 255.255.255.0 192.168.2.2 metric 1 if X
route -p add 192.168.2.2 mask 255.255.255.0 192.168.2.2 metric 1 if X
