Cisco DoS required CBOS upgrade- Qwest complaint

[Eric Richardson]

Patrick Fleming EA wrote:

> I have been in contact with Cisco support as well as customer support 
> within Qwest regarding a serious Denial of Service update to the software
> that runs my Cisco 678 router. On 5-23-2002 Cisco released the following
> advisory: http://www.cisco.com/warp/public/707/CBOS-DoS.shtml As
> indicated, I called Qwest- the provider of my modem. The first person I
> talked to transfered me to another department. Without talking to anyone
> at all, just following the prompts provided by the voice mail system, I
> was able to get right back where I originally started, with DSL Tech
> support. This time I was told that they had just received a memo regarding
> the updated software but that he didn't know anything more regarding the
> memo. This was either 5-28 or 5-29. I emailed Cisco, based upon their
> press release to attempt to get the update from them as I was unsuccessful
> with getting anything from Qwest. Their response is the following website:
> http://www.qwest.com/dsl/customerservice/modemsupport.html which as of
> 9:00am 5-31-2002 indicated that they are working on getting the software
> ready for use by their customers. This software has been available since
> 5-23 from Cisco, but since Qwest DSL users purchase their modems from
> Qwest, Cisco indicates that it is Qwest's responsibility to provide the
> upgrades. I would have no problem with that if Qwest fulfilled this
> responsibility with their customers, of which I am only one. I have 
> recontacted Cisco in regards to the unavailability of the upgrade on 
> Qwest's site and I seem to be in a support loop waiting for a human to 
> read my email.
> 
> I believe that this deserves the attention of the Corporation Commission 
> as it represents a shortfall in the quality of service provided by a 
> public utility.
> 
> 
> 
from 5-13-02

Eric Richardson wrote:

Hi,
Is there a way to get the CBOS 2.4.3 for a 675 and install it with Linux 
via the terminal port and a com program. I have tried connecting via 
modem serial port but I'm not really sure how to do the upgrade. I'm in 
routing mode so I don't think I can use the tftp procedure as the router 
doesn't have a IP address.

Any help appreciated,



Thanks for the help / encouragement. I wanted to send an update on my 
findings.

I didn't know that the .exe format is a zip format - that is 
interesting. I found a place on line for the firmware. 
http://postyware.dyndns.org/cisco-firmware Note that the images are 
different based on the original CBOS version. In my case this was 2.2.0.

I tried to use the tftp program to download the code but had no luck. 
I'm using Debian 2.2 so I was able to apt-get tftp. I installed minicom 
to communicate to the router but what I did wrong was I did not install 
lrzsz which contains the kermit, xyz/modem stuff. I thought perhaps the 
option were wrong so I went to look at the man pages for sx (send 
xmodem) and it was there so then I knew I was a dummy. I found that the 
lrzsz was recommended but not a dependency for minicom.

Finally, after I had the right software but still no luck, I decided to 
try zmodem which didn't work and then ymodem which worked. I have no 
idea why xmodem didn't work but ymodem did. I upgraded to 2.4.4 and all 
seems well. I use FastQ and they are finding that the PPP mode rather 
than the routing mode is more stable so eventually they will be moving 
customers that direction.

Is anybody using the filtering, NAT, DHCP with cisco and what features 
for the Linux firewall. Maybe this is better for another thread.

Eric


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