[CentOS] Re: 2 DHCP servers - different VLAN's

Scott Silva ssilva at sgvwater.com
Fri Jul 25 21:27:02 UTC 2008


on 7-25-2008 1:46 PM � spake the following:
> 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 10.123.42.169 
> <http://10.123.42.169> to 00:16:cf:93:1f:33 via eth0
> Jul 25 12:38:52 boss dhcpd: DHCPREQUEST for 10.123.42.169 
> <http://10.123.42.169> 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!
> 
Maybe that interface isn't properly supporting the VLAN tagging and packets 
leak through.

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