IPv6 routing issue in Provo

Hi, since about 15 minutes our hosts in Provo can no longer reach the internet over IPv6, and similarly inbound traffic does no longer arrive over IPv6. IPv4 continues to work, hence it does not seem to affect many public facing services. I noticed this issues since our monitoring tries to reach hosts over IPv6, so alerts for every VM in Provo started to come in. ;-) I forwarded the issue and will update status.o.o once it is resolved. Georg