如果允許來(lái)自子網(wǎng)172.30.16.0/24到172.30.31.0/24的分組通過(guò)路由器,則對(duì)應(yīng)ACL語(yǔ)句應(yīng)該是()
A. access-list 10 permit 172.30.16. 0 255.255. 0.0
B. access-list 10 permit 172.30.16. 0 0.0.2555.255
C. access-list 10 permit 172.30.16. 0 0.0.15.255
D. access-list 10 permit 172.30.16. 0 255.255.240.0