DHCP服务器为不同Vlan的主机分配IP,并且vlan间可以通信
Switch#show spanning-treeVLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0002.1638.13C4
Cost 19
Port 20(FastEthernet0/20)
Hello Time2 secMax Age 20 secForward Delay 15 sec
Bridge IDPriority 32769(priority 32768 sys-id-ext 1)
Address 000C.CFC3.0108
Hello Time2 secMax Age 20 secForward Delay 15 sec
Aging Time20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/20 Root FWD 19 128.20 P2p
Fa0/22 Desg FWD 19 128.22 P2p
VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 32788
Address 0002.1638.13C4
Cost 19
Port 20(FastEthernet0/20)
Hello Time2 secMax Age 20 secForward Delay 15 sec
Bridge IDPriority 32788(priority 32768 sys-id-ext 20)
Address 000C.CFC3.0108
Hello Time2 secMax Age 20 secForward Delay 15 sec
Aging Time20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/20 Root FWD 19 128.20 P2p
Fa0/22 Desg FWD 19 128.22 P2p
VLAN0030
Spanning tree enabled protocol ieee
Root ID Priority 32798
Address 0002.1638.13C4
Cost 19
Port 20(FastEthernet0/20)
Hello Time2 secMax Age 20 secForward Delay 15 sec
Bridge IDPriority 32798(priority 32768 sys-id-ext 30)
Address 000C.CFC3.0108
Hello Time2 secMax Age 20 secForward Delay 15 sec
Aging Time20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/20 Root FWD 19 128.20 P2p
Fa0/22 Desg FWD 19 128.22 P2p
VLAN0040
Spanning tree enabled protocol ieee
Root ID Priority 32808
Address 0002.1638.13C4
Cost 19
Port 20(FastEthernet0/20)
Hello Time2 secMax Age 20 secForward Delay 15 sec
Bridge IDPriority 32808(priority 32768 sys-id-ext 40)
Address 000C.CFC3.0108
Hello Time2 secMax Age 20 secForward Delay 15 sec
Aging Time20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/4 Desg FWD 19 128.4 P2p
Fa0/20 Root FWD 19 128.20 P2p
Fa0/22 Desg FWD 19 128.22 P2p
VLAN0100
Spanning tree enabled protocol ieee
Root ID Priority 32868
Address 0002.1638.13C4
Cost 19
Port 20(FastEthernet0/20)
Hello Time2 secMax Age 20 secForward Delay 15 sec
Bridge IDPriority 32868(priority 32768 sys-id-ext 100)
Address 000C.CFC3.0108
Hello Time2 secMax Age 20 secForward Delay 15 sec
Aging Time20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/10 Desg FWD 19 128.10 P2p
Fa0/20 Root FWD 19 128.20 P2p
Fa0/22 Desg FWD 19 128.22 P2p
这里可以看出哪里出了问题?有些主机无法获得IP地址?怎么改善DHCP动态分配IP地址?
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