Re: Authoritative Resources for Public DNS Pinging

2022-02-09 Thread Lukasz Bromirski
Mark, > On 9 Feb 2022, at 16:02, Mark Tinka wrote: > On 2/9/22 16:53, Łukasz Bromirski wrote: >> Yup. And Google folks accounted for the world pinging them all day long. >> >> I wouldn't call using DNS resolvers as best "am I connected to internet over >> this interface" tool though. A day,

Re: Requirements for IPv6 Firewalls

2014-04-22 Thread Lukasz Bromirski
On 22 Apr 2014, at 22:49, George Herbert george.herb...@gmail.com wrote: Any number of enterprises have chosen that if a DDOS or other advanced attack is going to be successful, to let that be successful in bringing down a firewall on the external shell of the security envelope rather than

Re: Filter NTP traffic by packet size?

2014-02-23 Thread Lukasz Bromirski
On 23 Feb 2014, at 18:29, sth...@nethelp.no wrote: Speaking only for myself: No. The L2 IXes I connect to should use their resources for packet switching, not filtering. Way too many things that could go wrong if we go down the filtering path… Indeed. Most of the L2 IXes run on very

Re: IOS architecture

2012-10-28 Thread Lukasz Bromirski
On Oct 27, 2012, at 11:00 PM, Pete Lumbis alum...@gmail.com wrote: You might want to take a look at the CEF book, which expands on this http://www.amazon.com/Cisco-Express-Forwarding-ebook/dp/B0015V9DQU/ both of these are still very accurate on how IOS operates today. The only major

Re: Implementations/suggestions for Multihoming IPv6 for DSL sites

2011-04-18 Thread Lukasz Bromirski
On 2011-04-13 21:13, Jeff Wheeler wrote: Plain and simple, it does not scale up any better than injecting more routes into the DFZ, unless you 1) accept macro-flow-based routing; or 2) scale up the size of your FIB along with the much larger number of prefixes which would be introduced by

Re: Implementations/suggestions for Multihoming IPv6 for DSL sites

2011-04-18 Thread Lukasz Bromirski
On 2011-04-18 21:18, Jeff Wheeler wrote: I strongly disagree with the assumption that the number of locations/sites would remain static. It would grow, nobody said it would remain static. But still - it will grow slower than the number of new full allocations - covering both location *and*

Re: Implementations/suggestions for Multihoming IPv6 for DSL sites

2011-04-18 Thread Lukasz Bromirski
On 2011-04-18 21:50, Leo Bicknell wrote: To my mind then, LISP moves these tables from a few thousand DFZ routers managed (generally) by well staffed engineering teams to tens or hundreds of thousands of edge boxes, in many cases managed by the clueless. This is something out of practical

PLNOG3 - 10-11.09.2009 - Call for Papers!

2009-05-26 Thread Lukasz Bromirski
Hello, Polish Network Operators Group (PLNOG)[1] will meet for the third time ever on 10th and 11th of September 2009 in Cracow, Poland. We would like to invite You all to submit your presentation proposal. The plan for PLNOG 3rd is to have three tracks: * Architectures and technologies -