On 30 Aug 2009, at 17:30, Mark Abene wrote: At the risk of sounding redundant, did you make sure you recompiled simh AFTER upgrading OSX? Yes several times. Dynamically and statically with a new libpcap built from sources. It seems that pcap_dspatch never calls the callback routine. I haven't had chance to debug it further, maybe later. Chrissie Chrissie Caulfield wrote: Gregg Levine wrote: On Sat, Aug 29, 2009 at 1:54 PM, Chrissie Caulfield<christine.caulfield at googlemail.com> wrote: I installed Snow Leopard on my Mac Mini this afternoon (no snide comments please), and it seems to have broken something in libpcap such simh networking no longer works. I've tried a few obvious things to no avail. So my normal emulated router ROOSTA is down at the moment. I've booted up the real VAX called Zarqon to keep the network running and it should be OK for a while, or at least until I need to use that room for recordings. Chrissie Hello! I actually wasn't going to yield to temptation as it happens. However you might want to report the bug to Apple. That cat just came out this week and there are sure as somebody made green apples going to be bugs. I'll need to spend some time diagnosing it properly if I'm to report it to Apple, I suspect just telling them that "simh VAX network emulation isn't working" wouldn't be a very well received bug report ;-) And it's obviously more subtle that just a broken libpcap because my LAT software (which also uses libpcap - though obviously slightly differently) works perfectly, also I copied libpcap from my un-upgraded Mac to test simh, and it's still broken on the new OS, which implies it's something that has changed in the kernel. Chrissie Besides I know a specific snow leopard and that's his favorite...... ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature was once found posting rude messages in English in the Moscow subway."