On Tue, 06 Jul 1999, Robert Gash wrote:
> I have a P100 Linux machine at my house that acts as a firewall/gateway
> to the Internet for my home LAN (IP masquerading). I have a 2-way
> cablemodem from Mediaone, therefore I must use DHCP to obtain an IP
> address. I am currently using the dhclient (ISC's new DHCP-v2 official
> client) to get the IP address, and the DHCP client and server seem to
> work just fine.
>
> Most of the time it seems to work fine, but I have been recently running
> into a problem that the network goes into a state of REALLY bad latency
> (pings from good and bad times are below). The time period that it
> takes before it breaks seems to be completeley random and there dosen't
> appear to be a thing that I can do to fix this (there is no weird system
> activity [high cpu load, etc] running at these times, and noone is
> attempting to DoS the box either, as eth0 is silent for all traffic). I
> have found that taking the interface offline and re-running the dhclient
> program works fine and the net is once again reachable and operates at a
> good clip all of the time. The problem is also not on MediaOne's end,
> as I tried it with my other NIC and it appears to be stable. I will
> reiterate that this is ALWAYS Fixed IMMEDIATLEY by bringing eth0 down
> then re-running the dhclient software (brings eth0 back up), so I can
> bet it's not M1 (I always have normal operation lights on the cablemodem
> when this happens). I have checked all cables and this does not appear
> to be a hardware issue.
Severely cut
You say this seems new in 2.2.10, what version did you NOT have this
problem?
Could you try swapping the IRQ's on your two NICs and see if the
problem migrates?
Fred
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