Messages in this thread | | | Subject | Linux box won't receive files on network | From | Kirk Reiser <> | Date | 23 Oct 1999 20:37:20 -0400 |
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Hi Folks: I am at a loss for what to do next with a networking problem which has me befuddled.
I have a linux box acting as a server and gateway between an internal LAN and the outside world through a Cisco 675 router. I have two nic cards in the linux box with bridging, forwarding, ip_masquerading and the like compiled in. The interface to the outside world seems to work just fine. The interface on the inside interface seems to be able to transfer data to the windows boxes no problem, unfortunately, it won't receive anymore than about 10k of data before stalling.
I am using NetGear FA310-tx cards on all machines and I have upgrade the tulip driver to v0.91g. I am running linux-2.2.12 but also had the problem with 2.2.10.
I have done a tcpdump on the interface but don't seem to be able to get much understanding from the output. It appears as though the windows box sends a number of packets to the linux box. The linux box does an ACK of those packets and the windows box sends more packets. It looks as if the linux box just keeps sending back an ack for the same block of data as it did before. The sequence numbers on the incoming packets change but the acks don't. After a while the windows box just times out. I also have the kernel compiled for no fragments. I see the (DF) no fragment option on each packet sent from the linux box. I never see any kind of acknowledgement of that from the windows box.
Does anyone have any idea what is wrong? I would certainly appreciate any help people might give me. I would hate to lose this linux box to an NT package.
Kirk
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Kirk Reiser The Computer Braille Facility e-mail: kirk@braille.uwo.ca University of Western Ontario phone: (519) 661-3061
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