duplicated IP address in dhcpd.leases

[Simon Hobson]

Bojan Matijasevic wrote:

>I have dhcp 3.0.1 on Sun Solaris 10 X64 system.

That is VERY old now.

>I have notice that my dhcp client Audiocode M114 gateway doesn't get 
>same IP address when rebooted even if lease time is not expired. 
>From logs can be seen that in period of two hours client has been 
>rebooted couple times and DHCP gives to client two different IP 
>addresses every time client boots. Just to mention this client first 
>send BOOTREQUEST and before sending DHCPREQUEST dhcp server logs 
>following error "uid lease 10.19.191.221 for client 
>00:90:8f:21:7a:c3 is duplicate on 10.19.191.208/28". Only IP address 
>differ every time client boots.
>There are no static addresses set on this dhcp server nor this 
>system is set in failover  mode.
>
>Jul 21 14:05:14 dhcp1-phy dhcpd: [ID 702911 local7.info] BOOTREQUEST 
>from 00:90:8f:21:7a:c3 via 10.19.191.209
>Jul 21 14:05:14 dhcp1-phy dhcpd: [ID 702911 local7.info] BOOTREPLY 
>on 10.19.191.218 to 00:90:8f:21:7a:c3 via 10.19.191.209
>Jul 21 14:05:36 dhcp1-phy dhcpd: [ID 702911 local7.error] uid lease 
>10.19.191.221 for client 00:90:8f:21:7a:c3 is duplicate on 
>10.19.191.208/28
>Jul 21 14:05:36 dhcp1-phy dhcpd: [ID 702911 local7.info] DHCPREQUEST 
>for 10.19.191.218 from 00:90:8f:21:7a:c3 via 10.19.191.209
>Jul 21 14:05:36 dhcp1-phy dhcpd: [ID 702911 local7.info] DHCPACK on 
>10.19.191.218 to 00:90:8f:21:7a:c3 (ACL_2194115) via 10.19.191.209

Interesting - what is the client ? It's doing a BOOTP request and 
then doing a DHCP Request, these are different protocols. If you 
don't actually need BOOTP then you might try setting the server to 
ignore BOOTP requests. I suspect your "deny duplicates" statement may 
also be having an effect as well.

-- 
Simon Hobson

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