Hi everyvone, Thanks for all the reply's last time. The problem solved itself when setting 100Mbit full duplex without autonegotiation. Now I have everything up and running in a little lab setup with NAT. Linux box has 2 interfaces, one uplink and one dot1q tagged for NAT networks I can use all the vlans to access the internet with a static IP'address And the vlans can communicate with eachother if I don?t deny it with iptables. 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. Thanks in advance, Magnus Ternstr?m
