Re: 2.4.19-ac4 IRQ messup?

From: Henning P. Schmiedehausen (
Date: Tue Aug 06 2002 - 11:50:33 EST

Thomas Mierau <> writes:

>I switched cables, checked the switch etc....
>nothing helps.
>I installed an extra PCI card which came up as eth0, making the internal ones
>eth1 and eth2. No I started pinging with eth0, which was giving me strange
>effects again.
>eth0 =
>eth1 =
>eth2 =
>I took a tcpdump on the receiving box. It was kind of interesting.
>There were arp packages askin who is and answers coming back
>with two dofferent MAC-Id's One from the eth0 and the other one from the eth2
>which was actually configured on IP .13
> After I shut down etho1 and 2 and ran the box with "noapic" it preforms
>perfect with the external card.
>Either the NIC's are broken, or the driver or whatever. I hate that !!

Are they all on the same ethernet? If yes, then

a) don't do this
b) try echo "1"> /proc/sys/net/ipv4/conf/all/arp_filter


Dipl.-Inf. (Univ.) Henning P. Schmiedehausen       -- Geschaeftsfuehrer
INTERMETA - Gesellschaft fuer Mehrwertdienste mbH

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