Hi, I've been repeatedly experiencing the same kernel panic. It happens on a computer that acts as an isdn internet gateway for my home network. Two other computers, that have the same kernel and NICs but don't do ip-forwarding have not crashed so far. * NIC: 3com 3c905B-TX (PCI) * ISDN: Teles 16.3 (ISA) The calling stack always looked pretty much the same (see Attachment). The panic occurs, when multiple internet connections are in use. Regards, Matthias PS: Please put into CC, as I am not subscribed to the list. I've skimmed over the last two weeks of the archive, but did not find anything that looked similar to me.