[leglug-users] [llug-users] newer kernel drops packets?

[BashLogic]

heh :)

glad to see that the problem was resolved :)

everyone was speculating core subjects :)

gl with its usage!

On 3/2/07, Edmond <edmond at greencedars.com> wrote:
> On Tue, 20 Feb 2007, Edmond wrote:
>
> > I have a situation with an embedded router where I went from kernel
> > 2.4.2 to to 2.4.34 (latest). Everything else has not been changed,
> > including iptables rules. Just the kernel. But now DNS request packets
> > coming in from the outside are being dropped by the default drop policy.
> > IN FACT, if I clear the iptables chain, the DNS requests continue to
> > be dropped so this has nothing to do with iptables.  Again, the same
> > firewall rules work fine on the first kernel but not the second. They
> > are both built with packet forwarding and ipfilter iptables/nat capability.
>
>
> I have solved this problem. I actually misled you in my statement above.
> What I had done was build a new machine with the identical hardware, but
> of course the mac addresses of the network cards were different. What
> happened was that the arp tables needed to be updated at my upstream
> provider's router. As it turns out it updates every four hours. I had
> never connected the router that long because it was dropping packets and
> my assumption was a local problem. Last night I left it connected to see
> if arp was the problem and this morning arp tables were updated and
> everything working normally.
>
> So now I have a solid state router booting with a CF card with about 3Mb
> of stuff on it, with a kernel built with uCLibc instead of gnu libc.
> Life is rosy.
>
> Regards,
>
>     Edmond
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>


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