A.10.0.0.0-10.255.255.255 B.172.16.0.0-172.31.255.255 C.192.168.0.0-192.168.255.255 D.0.0.0.1-9.255.255.255
A.vlan 1 B.vlan 100 C.vlan 1002 D.vlan 0
A.源IP+目标IP B.源MAC+目标MAC C.源端口+目标端口 D.用户模式
A.LAN B.MAN C.WAN D.FF
A.1-126/8 B.128-191/16 C.192-223/24 D.172.16.0.0-172.31.255.255
A.1-126/8 B.128-191/16 C.192-223/24 D.224-239/8
A.单个IP B.网段 C.任何 D.广播
A.PAT技术 B.isl C.trunk D.stp
A.静态NAT B.动态NAT C.PAT D.FAT
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