We are wanting to add a second PE router for an MPLS customer via HSRP. Unfortunately the CE router's connection to the PE router was configured as a /30. There are no IP addresses on the subnet to use as the physical IP addresses of the HSRP routers and re-IP'ing the customer's network is not an option.
HSRP will not run without a physical, in addition to virtual, IP address on the interface. If I place the physical address on a different subnet, I get similar behavorior to what is described in the Packet Life link below.
"show standby" lists the state as "Init (virtual IP in wrong subnet)".
Is there a way to use HSRP on an interface that has a /30 subnet?