Is it possible to bridge multiple "tap" interfaces in Linux? When two tap interfaces are bridged together they are unable to "see" each other but they can bridge to external Ethernet interfaces or the hosts IP attached on the bridge. I saw some mention in the mailing list archives on bridging two user space processes but it didn't seem to have any conclusion. I also noticed some other wireless interfaces and tap interfaces are not able to be bridged. http://lists.osdl.org/pipermail/bridge/2005-December/001215.html So does the bridging code differentiate between the pseudo-devices before making forwarding decisions? Thanks Anush