(...) > But The DHCP server don't wanna play along over vlans? > When sniffing the traffic, the DHCP UPD packets arive on eth0.5 on the > router but that's it, the dhcp don't respond to the vlan interfaces. > DHCP works fine to regular ethernet if's. On our main router, our dhcpd.conf looks like this : ----------------- ddns-update-style none; max-lease-time 10800; default-lease-time 10800; # # vlan1001 Config # subnet 10.0.1.0 netmask 255.255.255.0 { range 10.0.1.128 10.0.1.250; option subnet-mask 255.255.255.0; option routers 10.0.1.1; option domain-name-servers nn.nn.nn.nn; option domain-name "vlan1001.domain.local"; } ----------------- and so on. So you basicly need to have a block for each vlan on your box. Make sure you also don't drop the packet in iptables : -A INPUT -i vlan10+ -m udp -p udp --dport 67:68 -j ACCEPT -A OUTPUT -o vlan10+ -m udp -p udp --sport 67:68 -j ACCEPT Nicolas