[oclug] UDP Masqurading

[bbarnett at l8r.net]

Er, sounds weird.

1) could be a bad modem
2) perhaps the cable modem isn't hanging, but the kernel is.  The appearance
would be the same, except that occasional inbound traffic might be noticed, but
not replied to
3) could be the network card/ card driver..


On 18-Jan-2001 Tom Maxwell wrote:
> Encountered a bit of a problem with my RH6.2 installation which has confused
> me.
> 
> First a background:
> 
> 4 System Network.
> Rogers Wave Connection
> 1 Gateway ( RH6.2 2.2.17 )
> 3 Windows Machines served by DHCP and other services.
> 
> rc.firewall script active blocking TCP ports. UDP ports open ( testing
> purposes )
> 
> Apparently for some reason when I start streaming UDP packets (VNC , Gaming)
> across the network my Rogers Teryon modem will hang and refusing to route
> any more packets (masqurade topology).  A quick unplug and reconnection
> resets the modem.
> 
> Is Linux sending any form of bad data packets which cause the modem to drop
> or does this lie somewhere else in terms of the Teryon modem.
> 
> My logic is that for some reason when Linux starts routing UDP packets at a
> fast rate it in some way floods the cable modem and drops the connection.
> 
> Any logic to this?
> Anyone encounter any problems of this nature?
> 
> Thomas Maxwell
> tommaxwell at home.com
> 
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> oclug at lists.oclug.on.ca
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