farrell@pangea.Stanford.EDU (Phil Farrell) (05/10/91)
In article <tih.673686101@barsoom> tih@barsoom.nhh.no (Tom Ivar Helbekkmo) writes: >I set up my packet filter to run in promiscuous mode here yesterday, on >a 5000/200 with 4.1, and our whole VAXcluster (VMS) started crashing like >nobody's business... I've heard that promiscuous mode will break LAT if >you've got LAT installed on the Ultrix host running it, which I haven't, >but I'm wondering if it still may have been my experimenting that killed >the VAXen. We use LAT very extensively, in fact 3 out of every 4 packets >on our ethernet are LAT packets. Anybody know anything about it? > In reference to an unrelated kernel problem on my DECsystem 5810 running RISC Ultrix, I saw (but was not able to copy) one of those DEC "for internal use only" memos listing all current patches to RISC Ultrix 4.1. One of them was a kernel patch that specifically addressed this issue of promiscuous mode packet filter incompatibility with LAT. I don't even recall the name of the routine, unfortunately, but I think it is time for everyone who has reported this problem on the net to start harassing DEC Ultrix support to get this patch. -Phil Farrell, Computer Systems Manager Stanford University School of Earth Sciences farrell@pangea.stanford.edu