> The dhclient.conf is this one:
> 
> interface "le0" {
>            send host-name "maiko.xxxxxxx.xx";
>            request subnet-mask, broadcast-address, time-offset, routers,
>                 domain-name, domain-name-servers;
>            require subnet-mask, domain-name-servers;
>        }
> 
> interface "le1" {
>            send host-name "maikolocal";
>            request subnet-mask, broadcast-address, time-offset, routers,
>                 domain-name, domain-name-servers;
>            require subnet-mask, domain-name-servers;
>        }
> 

What are you using this box for? I'm going to assume that you
 might be using it as a router and if that's the case then 
le1 is the internal interface. Does it really need to request
 information using dhcp.. especially 'domain-name-servers'?