s = - 2001:23:24::/40,172.18.45.0/24 t = 172.18.45.192/28,172.31.80.8/32 False False 172.18.44.0/23 False False 172.18.45.6/32 True False 172.18.45.0/24 True False a = ::/0,0.0.0.0/0 True True ^ 172.18.45.192/28 172.18.45.192/28 u 2001:23:24::/40,172.18.45.0/24,172.31.80.8/32 2001:23:24::/40,172.18.45.0/24,172.31.80.8/32