OR ... You could always be sure and connect to the same "backbone" provider in each location. then said provider can aggregate the two /20's to a /19. If you need/want a second backbone provider in each location. get a connection between the US and Asia locations. You could even do this as a tunnel using just the port addresses of each connection. OF course a tunnel may not scale very well and might not be "a good thing". There are just so many ways to make sure that /19 is announced to the "filtering" majors ... -Chris -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Arnd Vehling Sent: Thursday, March 22, 2001 3:05 AM To: Kenji Anzai Cc: nanog@merit.edu Subject: Re: using ARIN assigned address in Asia Hello, Kenji Anzai wrote:
Our client has IP address space that was originally assigned from ARIN. Their address space is a big enough to separate to /20 each. [..] They would like to use front half (/20) in North America. And, they would like to use the other half of the address space (/20) in Asia.
By using i.e. announcing ip-ranges < /19 you risk beeing filtered by one of the major ISPs. I wouldnt recommend splitting it up in 2 * /20. regards, Arnd -- NetHead Network Design and Security Arnd Vehling av@nethead.De Gummersbacherstr. 27 Phone: +49 221 8809210 DE-50679 Cologne Fax : +49 221 8809212