nanog mailing list archives
Re: We have a firewall (was Re: Pakistan government orders ISP service level agreement)
From: Phil Rosenthal <pr () isprime com>
Date: Tue, 06 May 2003 20:02:35 -0400
On 5/6/03 7:51 PM, "E.B. Dreger" <eddy+public+spam () noc everquick net> wrote:
SD> Date: Tue, 6 May 2003 19:28:48 -0400 (EDT) SD> From: Sean Donelan SD> The Pakistan Telecommunications Company Ltd has aquired a SD> firewall to solve the DDOS situation impacting Internet SD> service in the country. An unnamed security advisor asserted SD> the proper use of a firewall would control the DDOS attacks SD> and prevent hacking. Now the DDoS melts the pipes _and_ the firewall. I'd like to know if said "consultant" ever considered recommending the PTC contact their upstreams for help with backtrace/blocking. Anyone with a modicum of clue (or Google access) should figure out that one...
Not every upstream is as clueful as Uunet, and not every noc employee is as clueful as Chris and Brian at UUnet. It has been my experience that most upstreams have no concept that they CAN backtrace, and generally have no interest in helping you do it. I'm not mudslinging here, so I won't say who my experience is with, but a few transitless/near transitless upstreams I've dealt with were most unhelpful, either because they didn't know how to help, or worse, they did know how to help and didn't care. And, depending on the nature of the DDoS attack, perhaps it isn't related to saturation, but rather to overloading router processors, or something else that can effectively be filtered customer-side? Our policy as of late has just been to make sure we have equipment on our side fast enough to filter at wire speed, and get enough capacity to our upstreams that it is signifigantly unlikely that anyone could generate enough traffic to saturate it (in which case, we would have no choice but to ask carriers to filter, and backtrace). --Phil ISPrime
Eddy -- Brotsman & Dreger, Inc. - EverQuick Internet Division Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 (785) 865-5885 Lawrence and [inter]national Phone: +1 (316) 794-8922 Wichita ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist () brics com> To: blacklist () brics com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist () brics com>, or you are likely to be blocked.
Current thread:
- Re: Pakistan government orders ISP service level agreement, (continued)
- Re: Pakistan government orders ISP service level agreement Christopher L. Morrow (May 05)
- Re: Pakistan government orders ISP service level agreement Eric Gauthier (May 05)
- Re: Pakistan government orders ISP service level agreement Sean Donelan (May 05)
- Re: Pakistan government orders ISP service level agreement Joe Abley (May 05)
- Re: Pakistan government orders ISP service level agreement Joseph T. Klein (May 05)
- Re: Pakistan government orders ISP service level agreement Vijay Gill (May 05)
- We have a firewall (was Re: Pakistan government orders ISP service level agreement) Sean Donelan (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISP service level agreement) Christopher L. Morrow (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISP service level agreement) E.B. Dreger (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISP service level agreement) Rob Thomas (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISP service level agreement) Phil Rosenthal (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Scott Granados (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) John Payne (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Rob Thomas (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Scott Granados (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Christopher L. Morrow (May 06)
- Re: Pakistan government orders ISP service level agreement Christopher L. Morrow (May 05)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Scott Granados (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Tim Wilde (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Christopher L. Morrow (May 06)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Scott Granados (May 07)
- Re: We have a firewall (was Re: Pakistan government orders ISPservice level agreement) Leo Bicknell (May 07)