LAN black hole, WAN OK!
Hey guys, my first post on TechNet... Go easy, please :) I have a pretty unusual problem: My (simple) LAN is a black hole while WAN access works everywhere. Lemme give you a brief overview of my LAN: One Windows 7 Ultimate machine that runs some VMs for development & testing, also play games on this, one Windows 7 Ultimate machine that's a general purpose box, another gaming box, too, and one Linux box that's doing the routing/firewalling/etc. (Linux box is pretty irrelevant for this, I think) When I try accessing anything -- and I mean anything, ICMP ping, file sharing, VNC, etc. -- on one Win7 box from the other I get a timeout. I turned off the firewalls on each Win7 machine to be certain it wasn't due to network traffic being dropped by the firewall(s). My NICs (that's 1 per box, 2 boxes) are configured with static IP addresses on the same subnet. I've checked my routing tables, and they contain the LAN subnet + zeroconf + loopback + the gateway (and the VM routes on the machine with the VMs). This is all normal. Nothing was changed on the router recently, but that shouldn't matter for client-to-client anyway, should it? They're both on the same subnet. Any ideas at all of what could be wrong would be *greatly* appreciated. This has never happened to me before :X -DHG
November 25th, 2009 4:15am

hahaha I got it. Apparently Windows Firewall rules were still being enforced even with the service shut off. Silly me, I guess...
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November 25th, 2009 6:40am

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