Re: large organization nameservers sending icmp packets to dns servers.
On Mon, 06 Aug 2007 16:11:36 EDT, Matthew Crocker said:
But you could, it isn't hard to dump a BGP view into a box from a border router and use that map to determine the proper DNS records to return.
It's harder than it looks, given the number of people who pop up on this list and ask how to get BGP to Do The Right Thing when 2 paths are the same length but vastly differing in bandwidth, number-of-actual-hops, and/or latency....
On Aug 6, 2007, at 4:43 PM, Valdis.Kletnieks@vt.edu wrote:
On Mon, 06 Aug 2007 16:11:36 EDT, Matthew Crocker said:
But you could, it isn't hard to dump a BGP view into a box from a border router and use that map to determine the proper DNS records to return.
It's harder than it looks, given the number of people who pop up on this list and ask how to get BGP to Do The Right Thing when 2 paths are the same length but vastly differing in bandwidth, number-of-actual-hops, and/or latency....
Plus you are assuming BGP knows the right answer. People here are arguing ICMP Echo is a bad metric. BGP makes ICMP look like the gold standard. -- TTFN, patrick
participants (2)
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Patrick W. Gilmore -
Valdis.Kletnieks＠vt.edu