排除dhcp分配的IP地址时报错如下：
Error: Only idle or expired IP address can be disabled.
[core-Vlanif100]dhcp server excluded-ip-address 172.16.100.222
Error: Only idle or expired IP address can be disabled.
解决：
[core]display ip pool interface vlanif100 used | in 100.222
--------------------------------------------------------------------------
--------------------------------------------------------------------------
--------------------------------------------------------------------------
Network section :
--------------------------------------------------------------------------
Index IP MAC Lease Status
--------------------------------------------------------------------------
100.222 c81f-6639-b3df 30718 Used
---------------------------------------------------------------------------
[core]q
<core>reset ip pool interface vlanif100 172.16.100.222
Warning: If the IP addresses that are being used are reclaimed, may influence normal user in the network. Are you sure to continue?[Y/N]:y
本文转自 f_066 51CTO博客，原文链接：http://blog.51cto.com/ganmu/2066542，如需转载请自行联系原作者
