[CentOS] 2 DHCP servers - different VLAN's

David Hláčik david at hlacik.eu
Fri Jul 25 20:46:05 UTC 2008

Hello  guys,

to describe my scenario

i have 4 VLANS on my switch, each VLAN is different subject. I have one DHCP
server for 3 VLANS + second one DHCP server for 1 VLAN - named VLAN 7 .

Problem is , this started to make problems suddenly. VLAN 7 is not recieving
IP adress from correct DHCP server . On DHCP server where declaration for
subnet is configured, i am recieving this message :

Jul 25 12:38:47 boss dhcpd: DHCPNAK on to 00:16:cf:93:1f:33
via eth0
Jul 25 12:38:52 boss dhcpd: DHCPREQUEST for from
00:16:cf:93:1f:33 via eth0: wrong network.

How can i solve it and what does it mean?

I am using authoritative clausule in each subnet deffinition.

Thanks in advance!

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