Hi all I was wondering if STP runs over GRE multipoint. If it is possible to use as a simple fallback mechanism. Senario: 6503-E sup32 GRE1 GRE2 Loopback1 | | | | | | ADSL Eth WAN1 WAN2 GRE1 GRE2 Loopback0 1801-K9 | | Cust IF Or will I have to use an IGP? Best Regards Mattias Eliasson Teknikmejeriet AB