I am trying to configure private vlans on a few 3750 switches where the primary VLAN is a layer-3 SVI on a 3750. I can get secondary community VLANs talking within each community, but nothing can talk to the primary VLAN default gateway (the SVI). I can only mapping the secondary VLANs to the interface:
interface vlan 50
ip address 10.6.35.254 255.255.240.0
private-vlan mapping 51-52
...there is no option to set it as a promiscuous interface...
Installing a router and connecting to a 3750 via a promiscuous port (mapping all the secondary VLANs), works fine.
Is this a known issue with layer-3 interfaces on switches? Is there a solution?