We just got our 6509 s720 with IOS (tm) s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(18)SXF13, RELEASE SOFTWARE (fc1)
On the current IOS, HSRP and GLBP for ipv6 are not supported.
Is there any new IOS to support this? Especially GLBP for IPv6?
And any such IOS for Cat4506 S4? For we will reuse current Cat4506s as CD devices and enable IPv6 there too.
AFAIK IPv6 with HSRP & GLBP is still not available in the switching platforms yet. It is possible to use in most routers with the more current 12.4 IOS releases.
Hope this helps,