Weird DNS proxy issue on ECI Bfocus modem?

[Erez D]

Two friends of mine have the same router and the same problem ( from
the beginning), so i guess replacing the router will not help...
however. i told them to configure the computer to use dhcp for ip, but
use static dns .

On Sun, Feb 22, 2009 at 2:57 PM, Hetz Ben Hamo <hetzbh at gmail.com> wrote:
> Ori,
> Since you can't replace or diagnose parts of the board, my simple
> suggestion would be to replace the router (if I'm not mistaken, it
> won't cost you). That way you'll get a new modem with newer firmware.
>
> Hetz
>
Two friends of mine have the same router and the same problem ( from
the beginning when they got it), so i guess replacing the router will
not help...
however. i told them to configure the computer to use dhcp for ip, but
use static dns . this solved the problem ...

> On Sun, Feb 22, 2009 at 1:40 PM, Ori Berger <linux-il at orib.net> wrote:
>>
>> The DNS proxy on my ECI ADSL modem ran flawlessly for years, but recently, every few days it will abort with a segmentation fault. (I've been away for a few months, so I don't know exactly when it started -- later than October, earlier than February).
>>
>> Restarting it (by running "/sbin/dproxy -c /etc/dproxy.conf"), solves the problem, and there are no other visible problems.
>>
>> A hardware failure is possible but unlikely, given that it's all solid state (flash + ram) that has been doing the same thing for years.
>>
>> Another thing I suspect is bad, possibly malicious, DNS packets that make the proxy die. It's an old 2.4.17 MontaVista kernel, but I don't even know what version of dproxy.
>>
>> I found <http://www.securityfocus.com/bid/23243/exploit> but the dproxy is not listening for requests from the world, and thus (assuming my own machine is not a zombie -- I'm optimistic!) if it is indeed relevant, then it's possible some upstream DNS servers are not playing nice.
>>
>> Does anyone have a suggestion what I should be looking for, or to which firmware version should I update my modem?
>>
>> Thanks,
>> Ori.
>>
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>
>
>
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