Re: DNS problems to RoadRunner - tcp vs udp

2008-06-13 Thread Bill Owens
On Fri, Jun 13, 2008 at 02:14:55PM -0400, Jon Kibler wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Mark Price wrote: > > >>From what I have read, public DNS servers should support both UDP and > > TCP queries. TCP queries are often used when a UDP query fails, or if > > the answer

Re: easy way to scan for issues with path mtu discovery?

2008-06-24 Thread Bill Owens
On Tue, Jun 24, 2008 at 10:28:12AM -0400, Darden, Patrick S. wrote: > > > Hi all, > > Does anyone know of an easy way to scan for issues with path mtu discovery > along a hop path? E.g. if you think someone is ICMP black-holing along a > route, or even on the endpoint host, could you use some