On Mon, 2005-10-03 at 18:59 +0200, Mattias.Lignell@teliasonera.com wrote:
Hello all,
About the /32's; they are announced on purpose. The reason is that we have had problems with some ISP's BGP filters that are set to a maximum size of /32. As a result did not our IPv6 customers get connectivity via ISP's using the /32 size filters. Maybe this is a problem only we run in to being one of the first using a very large prefix. However, the BGP filters may be updated by now so we can stop announcing the /32's.
Thanks for the response, the prefix filtering is not too good to hear and has been seen before; I know that Daniel Roesen has been very busy trying to get C&W's /20 available to ISP's using, amongst others, the output from: http://www.sixxs.net/tools/grh/compare/?a=2001:5000::/21&b=2001:650::/32 At the moment apparently Cisco doesn't see the /21... This can be easily applied to Telia's /20: http://www.sixxs.net/tools/grh/compare/?a=2001:2000::/20&b=2001:2040::/32 This compares 2001:2000::/20 with 2001:2040::/32. Taking a quick look it looks quite good, ignoring the light orange which is there because of the added ASN. There are only few ISP's who report different paths: AS 6435 - LavaNet (us / Hawaii) AS 9264 - Academic Services Network (tw) AS21155 - Proserve (nl) AS28788 - Unilogic (nl) {using same upstreams as AS21155) You might want to contact these ISP's to ask them + upstreams to fix their filtering, clearly something is being filtered, otherwise the paths where the same. Greets, Jeroen