I have a pfSense 2.0.3 box with 5 interfaces, two of which are on motherboard ethernet controllers using the NVIDIA nForce4 CK804 MCP9 Networking Adapter chipset.
These two connections connect to the upstream IP (WAN) and to the old IP space for the local network (LAN). I've been seeing the the connection between the upstream ISP and the WAN go down (can reach it from the outside world, can't reach the outside world from it). When this happens, I can get to box by connecting to a box on the LAN network and then making a local connection to the LAN interface. If ifconfig down the WAN interface and then ifconfig up the WAN interface from the CLI, it comes back and works just find. The first time this happened, a Google search suggested that I was running out of mbufs (because the error message said no buffers). So I increased the number of buffers to 128K. The page that I ready said that problem with the mbuf could be do to bad wiring causing excessive packet loss on the interface This time, I did not get a no buffers error message and according to netstat -m, there where plenty of mbufs. Any ideas as to why traffic stops on my WAN interface until it is reset? Is cabling still a got idea or is it likely to be something else? The system in question is a two proc system with dual core Opteron 280 running on a Supermicro Server Class Motherboard with 4GB of ECC RAM. Walter -- The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well-meaning but without understanding. -- Justice Louis D. Brandeis
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