Hi,
I have the similar problem, but it is after a Cisco Router. My server is
a light weighted machine. I only telnet to it (no www or sendmail...) .
The most common situation is somehow I can not connect from outsite of
the router, and sometimes was like your situation. I turned off the
tcp_sack and still lost connection.
It seemed the problem is more close to the MAC layer.
But I turned on the ARP daemon, and seemed not relevent.
If I use the linux to ping a nieghbor ip addr in the subnet(dont even
need to be the router), then I can ping from outside!
I can not really always duplicate this situation. Can anyone give me a
hint how to narrow the problem?
Yi Chang
http://www.cae.wisc.edu/~changyi
(O) (608)262-5130
(H) (608)661-5355
On Mon, 17 Jan 2000, Helmut Wirth wrote:
> Hello,
>
> i�m trying to get up following configuration: We have two
> offices connected via two 3Com Netbuilder RemoteOffice Router
> over a 64K ISDN leased line. There are several unix machines
> in the second network, e.g. a DG Aviion running DG/UX, which
> can be accessed fine from the first network all the time.
>
> Now we installed a RH6.0 linux box in the second network.
> Opening a telnet-session from the first network succeeds,
> but on "fast" output (e.g. browsing through a large file
> with "less" while hitting the up / down buttons very fast)
> the connection hangs. Trying to reach the apache-server
> on the RH6.0 box results in a connection loss after a few
> transferred Bytes. Apache logs the hit correctly, no errors.
> "netstat -t" shows an established connection, after some
> time it changes state to "FIN_WAIT1", and so on till the
> system closes the connection. Sending a file to the box
> from remote via FTP results in a newly created but empty
> File on the RH6.0 - Box - the client shows some transfered
> blocks and then the connection hangs.
>
> There are no errors on the interface, no error in any logfile.
> Accessing the box within it�s LAN works fine.
>
> I�ve tried both kernel 2.2.5 and kernel 2.2.12 on the
> box - no change. I�ve now placed a second box there
> running RH6.1 - same result, connection hangs if accessed
> from remote. I�ve tried Windows & Unix Clients - same bad
> result.
>
> Has anybody any idea?
>
> --
> Helmut Wirth
>
> [EMAIL PROTECTED]
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> Ridlerstr. 11 fax +49 89 / 50 03 91-17
> D-80339 Muenchen http://www.bison-soft.de/
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