Hi, I have to computers each have to netwrok interfaces connected through a switch (the interfaces are called ib0 and ib1 - this is an IPOIB implementation but please read on ...). All interfaces are on the same IP subnet (mask is 255.255.0.0). When I from host A to host B interface ib1, the actuall traffic goes through host B/ib0 and (I assume) is routed internally by the kernel so I get ping responses from host B's ib1 interaface IP address. Now I bring host B's ib1 interface down (ifconfig ib1 down) and I assume the that interface's IP address no longer exists. But now when I ping from host A to host B's ib1 interface, I get replies. Moreover, I can even do ssh to that IP address. Is this normal? Thanks Eli - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html