DHCP SERVER ISSUE

[Himanshu_Dwivedi]

I have configured DHCP server in Cisco Switch, with/25 subnet, in which we can use 126 IP addresses for clients. Please find the below snapshot in which Leased is 40 and Excluded address are 100 total 140, how is it possible. What might be the issue.

Configuration

ip dhcp pool pool_name

network 10.206.86.128 255.255.255.128

default-router 10.206.86.129

[MHM Cisco World]

there is other DHCP Pool conflict with this Pool. 
share all DHCP Pool 

[Himanshu_Dwivedi]

Only 1 DHCP is configured as you can see in command sh ip dhc pool output.

 

[MHM Cisco World]

config new DHCP pool use any random not use subnet, 
do show again 
do you see same excluded = 100?

[Himanshu_Dwivedi]

I will do that and post here.

Note: 100 are excluded address not Leased address.

[MHM Cisco World]

No need friend, 
I am faster do small lab, 
the excluded can come from conflict, so check conflict IP 
show ip dhcp conflict 
do you see high IP list as conflict ? if Yes then each conflict IP is automatic excluded from Pool. 

[Richard Burts]

Would it be possible to post the configuration of the switch which has the dhcp pool?

[Georg Pauwen]

Hello,

you also might want to decrease the lease time (to e.g. 12 hours instead of the default 24). Disabling and re-enabling (no service dhcp/service dhcp) might also clear the statistics.