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how to use h3c switch command find out a repeated ip address
#-1F.wifi cannot use
#figue out who is using 172.18.x.xxx
#1
telnet 172.18.x.xx
system
display interface brief
dis mac-add 58d9-d582-8489
#display mac-address 58d9-d582-8489
int g1/0/22
shut
#taking your laptop connect a ethernet cable,
#it will solve 3 problem
1.the network cable from the wall
2.the network line
3.the internet ip
#2
telnet 172.18.x.xx
sys
int g1/0/22
shutdown
dis this
#
interface GigabitEthernet1/0/22
port access vlan 11
shutdown
stp edged-port enable
#
#a few moments later...
undo shutdown
#
interface GigabitEthernet1/0/22
port access vlan 11
stp edged-port enable
#
#done