Hi All, I am having trouble in Ethernet bridge and 802.1Q VLAN, I have the following network: Internet | | Gateway ( UPNP device) | | H u b ( one normal hub or switch , no VLAN) | \ | \ | \ Some 802.1Q VLAN Switches ( their uplink port is tagged) Our PCs connect with these VLAN Switches, they access Internet through the UPNP gateway, It works fine, from the gateway, we can see these VLAN ID of PCs; but when I insert one Ethernet bridge box ( one linux box, kernel 2.4.26, ebtables-brnf-6_vs_2.4.26 patch) between the gateway and the Hub, some changed: i was not able to log in hotmail. For exemple, with hotmail, the https transaction was done, but a basic error message prompt on navigator (DNS error or server not found). Except the above, others work fine, very strange! If have no this Ethernet bridge, it works fine, but the Ethernet bridge is only transparent bridge. The UPNP box can act as a universal gateway for these PCs under it, no matter what their IP are, maybe a dynamic IP, or any fixed IP. That's my trouble, could you give me your idea? Thank you very much! If you need more info on it, please let me know soon! Thank you very much! Kingz -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osdl.org/pipermail/bridge/attachments/20041118/fca5f10a/attachment.htm