= phenomenon =
BGP lookups from IPv6 clients returns no results

= reason =
no IPv6 global BGP table is downloaded

= recommendation =
commit 9db03a200ee35685500760b53847fb51367ff922
Author: Matt Domsch matt@domsch.com
Date: Tue Sep 29 08:10:59 2009 -0500

get IPv6 global netblocks also

diff --git a/server/get_global_netblocks b/server/get_global_netblocks
index bee9820..f2befda 100755
--- a/server/get_global_netblocks
+++ b/server/get_global_netblocks
@@ -9,14 +9,34 @@ tmpdir=$(mktemp -d /tmp/get_global_netblocks.XXXXXXXX) || exit 1
trap "rm -rf ${tmpdir}" EXIT QUIT HUP KILL TERM
listfile=$tmpdir/list

+function last_rib()
+{
+ head -n 20 ${tmpdir}/index.html | grep rib. | head -n 1 | \
+ awk -F 'href="' '{print $2}' | \
+ sed -e 's/".*//'
+}
+
+function get_ipv6_netblocks()
+{
+ local curdate=$(date +"%Y.%m")
+ URL="http://archive.routeviews.org/route-views6/bgpdata/$curdate/RIBS/"
+ wget -q -O ${tmpdir}/index.html "${URL}?C=M;O=D"
+ last=$(last_rib)
+ wget -O ${tmpdir}/$(basename $last) -q "${URL}/$last"
+ bzcat ${tmpdir}/$(basename $last) | perl internet2/zebra-dump-parser/zebra-dump-parser.pl | uniq > $tmpdir/ipv6.txt
+ # this prefix appears repeatedly for multiple ASs, which is nuts.
+ sed -e '/2001::\/32/d' $tmpdir/ipv6.txt >> ${listfile}
+}
+
function get_global_netblocks()
{
URL='http://ftp.routeviews.org/dnszones/rib.bz2'
wget -O ${tmpdir}/rib.bz2 -q "${URL}"
- bzcat ${tmpdir}/rib.bz2 | perl internet2/zebra-dump-parser/zebra-dump-parser.pl | uniq > ${listfile}
+ bzcat ${tmpdir}/rib.bz2 | perl internet2/zebra-dump-parser/zebra-dump-parser.pl | uniq >> ${listfile}
}

get_global_netblocks
+get_ipv6_netblocks
if [ -s ${listfile} ]; then
cp -f ${listfile} "${outfile}"
else

This if broken in 1.3.2, will be fixed with the above patch in 1.3.3, and is hotfixed on bapp1.